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12889020570799 = 16777179763897
BaseRepresentation
bin1011101110001111010101…
…1111100001110010101111
31200122011211000010101121211
42323203311133201302233
53142133203231231144
643225045002135251
72500125642124252
oct273436537416257
950564730111554
1012889020570799
11411a226106a6a
121541b8aab1527
137265775a4509
14327b90b2b099
151754165c3034
hexbb8f57e1caf

12889020570799 has 4 divisors (see below), whose sum is σ = 12966200334864. Its totient is φ = 12811840806736.

The previous prime is 12889020570743. The next prime is 12889020570817. The reversal of 12889020570799 is 99707502098821.

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

It is a cyclic number.

It is not a de Polignac number, because 12889020570799 - 223 = 12889012182191 is a prime.

It is a super-2 number, since 2×128890205707992 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889020570719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38589881782 + ... + 38589882115.

It is an arithmetic number, because the mean of its divisors is an integer number (3241550083716).

Almost surely, 212889020570799 is an apocalyptic number.

12889020570799 is a deficient number, since it is larger than the sum of its proper divisors (77179764065).

12889020570799 is an equidigital number, since it uses as much as digits as its factorization.

12889020570799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77179764064.

The product of its (nonzero) digits is 45722880, while the sum is 67.

The spelling of 12889020570799 in words is "twelve trillion, eight hundred eighty-nine billion, twenty million, five hundred seventy thousand, seven hundred ninety-nine".

Divisors: 1 167 77179763897 12889020570799