79883604864 has 480 divisors, whose sum is σ = 286840422000. Its totient is φ = 21615538176.

The previous prime is 79883604847. The next prime is 79883604907. The reversal of 79883604864 is 46840638897.

79883604864 is a `hidden beast` number, since 7 + 98 + 8 + 3 + 60 + 486 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 26198412 + ... + 26201460.

Almost surely, 2^79883604864 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 79883604864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143420211000).

79883604864 is an abundant number, since it is smaller than the sum of its proper divisors (206956817136).

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

79883604864 is a wasteful number, since it uses less digits than its factorization.

79883604864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 79883604864 in words is "seventy-nine billion, eight hundred eighty-three million, six hundred four thousand, eight hundred sixty-four".