79971651886560 has 192 divisors, whose sum is σ = 288290722309632. Its totient is φ = 18254296590336.

The previous prime is 79971651886559. The next prime is 79971651886597. The reversal of 79971651886560 is 6568815617997.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13772514 + ... + 18698273.

It is an arithmetic number, because the mean of its divisors is an integer number (1501514178696).

Almost surely, 2^{79971651886560} is an apocalyptic number.

79971651886560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79971651886560 is an abundant number, since it is smaller than the sum of its proper divisors (208319070423072).

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

79971651886560 is a wasteful number, since it uses less digits than its factorization.

79971651886560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32471545 (or 32471537 counting only the distinct ones).

The product of its (nonzero) digits is 1371686400, while the sum is 78.

The spelling of 79971651886560 in words is "seventy-nine trillion, nine hundred seventy-one billion, six hundred fifty-one million, eight hundred eighty-six thousand, five hundred sixty".