79487515968 has 448 divisors, whose sum is σ = 261302845440. Its totient is φ = 20820768768.

The previous prime is 79487515813. The next prime is 79487516047. The reversal of 79487515968 is 86951578497.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123619455 + ... + 123620097.

It is an arithmetic number, because the mean of its divisors is an integer number (583265280).

Almost surely, 2^79487515968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79487515968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130651422720).

79487515968 is an abundant number, since it is smaller than the sum of its proper divisors (181815329472).

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

79487515968 is a wasteful number, since it uses less digits than its factorization.

79487515968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 824 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 69.

The spelling of 79487515968 in words is "seventy-nine billion, four hundred eighty-seven million, five hundred fifteen thousand, nine hundred sixty-eight".