79402702680 has 800 divisors, whose sum is σ = 318450171600. Its totient is φ = 17738445312.

The previous prime is 79402702669. The next prime is 79402702693. The reversal of 79402702680 is 8620720497.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 458975074 + ... + 458975246.

Almost surely, 2^79402702680 is an apocalyptic number.

79402702680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79402702680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159225085800).

79402702680 is an abundant number, since it is smaller than the sum of its proper divisors (239047468920).

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

79402702680 is a wasteful number, since it uses less digits than its factorization.

79402702680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 79402702680 in words is "seventy-nine billion, four hundred two million, seven hundred two thousand, six hundred eighty".