79945703661264 has 80 divisors (see below), whose sum is σ = 236039323135488. Its totient is φ = 22840744093056.

The previous prime is 79945703661253. The next prime is 79945703661287. The reversal of 79945703661264 is 46216630754997.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4092139 + ... + 13290485.

Almost surely, 2^{79945703661264} is an apocalyptic number.

It is an amenable number.

79945703661264 is an abundant number, since it is smaller than the sum of its proper divisors (156093619474224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79945703661264 is a wasteful number, since it uses less digits than its factorization.

79945703661264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224232 (or 9224226 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 69.

The spelling of 79945703661264 in words is "seventy-nine trillion, nine hundred forty-five billion, seven hundred three million, six hundred sixty-one thousand, two hundred sixty-four".