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7407106561 = 59125544179
BaseRepresentation
bin1101110010111111…
…10111101000000001
3201010012210000000001
412321133313220001
5110132204402221
63223000000001
7351361236601
oct67137675001
921105700001
107407106561
113161133878
121528760001
139107650ba
14503a50c01
152d5433391
hex1b97f7a01

7407106561 has 4 divisors (see below), whose sum is σ = 7532650800. Its totient is φ = 7281562324.

The previous prime is 7407106541. The next prime is 7407106571. The reversal of 7407106561 is 1656017047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1656017047 = 2437679531.

It is a cyclic number.

It is not a de Polignac number, because 7407106561 - 217 = 7406975489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7407106561.

It is not an unprimeable number, because it can be changed into a prime (7407106541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62772031 + ... + 62772148.

It is an arithmetic number, because the mean of its divisors is an integer number (1883162700).

Almost surely, 27407106561 is an apocalyptic number.

It is an amenable number.

7407106561 is a deficient number, since it is larger than the sum of its proper divisors (125544239).

7407106561 is a wasteful number, since it uses less digits than its factorization.

7407106561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125544238.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 7407106561 is about 86064.5488049522. The cubic root of 7407106561 is about 1949.3187680443.

The spelling of 7407106561 in words is "seven billion, four hundred seven million, one hundred six thousand, five hundred sixty-one".

Divisors: 1 59 125544179 7407106561