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7065621261137 = 29243642112453
BaseRepresentation
bin110011011010001011111…
…0110000110101101010001
3221000110121021221102202102
41212310113312012231101
51411230343020324022
623005522424530145
71326321452532305
oct146642766065521
927013537842672
107065621261137
11228457100206a
12961446320955
133c339284542a
141a5d994a9d05
15c3bd66c5a92
hex66d17d86b51

7065621261137 has 4 divisors (see below), whose sum is σ = 7309263373620. Its totient is φ = 6821979148656.

The previous prime is 7065621261109. The next prime is 7065621261143. The reversal of 7065621261137 is 7311621265607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2191699632721 + 4873921628416 = 1480439^2 + 2207696^2 .

It is a cyclic number.

It is not a de Polignac number, because 7065621261137 - 28 = 7065621260881 is a prime.

It is a super-4 number, since 4×70656212611374 (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7065621261091 and 7065621261100.

It is not an unprimeable number, because it can be changed into a prime (7065621261157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121821056198 + ... + 121821056255.

It is an arithmetic number, because the mean of its divisors is an integer number (1827315843405).

Almost surely, 27065621261137 is an apocalyptic number.

It is an amenable number.

7065621261137 is a deficient number, since it is larger than the sum of its proper divisors (243642112483).

7065621261137 is a wasteful number, since it uses less digits than its factorization.

7065621261137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243642112482.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 7065621261137 in words is "seven trillion, sixty-five billion, six hundred twenty-one million, two hundred sixty-one thousand, one hundred thirty-seven".

Divisors: 1 29 243642112453 7065621261137