79647905045 has 16 divisors (see below), whose sum is σ = 101276442288. Its totient is φ = 59924705280.

The previous prime is 79647905017. The next prime is 79647905059. The reversal of 79647905045 is 54050974697.

It can be written as a sum of positive squares in 8 ways, for example, as 3925523716 + 75722381329 = 62654^2 + 275177^2 .

It is not a de Polignac number, because 79647905045 - 2³² = 75352937749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242384 + ... + 466953.

It is an arithmetic number, because the mean of its divisors is an integer number (6329777643).

Almost surely, 2^79647905045 is an apocalyptic number.

It is an amenable number.

79647905045 is a deficient number, since it is larger than the sum of its proper divisors (21628537243).

79647905045 is a wasteful number, since it uses less digits than its factorization.

79647905045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710680.

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 79647905045 in words is "seventy-nine billion, six hundred forty-seven million, nine hundred five thousand, forty-five".