79929623460 has 96 divisors (see below), whose sum is σ = 234396352512. Its totient is φ = 20312519040.

The previous prime is 79929623447. The next prime is 79929623467. The reversal of 79929623460 is 6432692997.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79929623460.

It is not an unprimeable number, because it can be changed into a prime (79929623467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267117 + ... + 480843.

It is an arithmetic number, because the mean of its divisors is an integer number (2441628672).

Almost surely, 2^79929623460 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 79929623460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117198176256).

79929623460 is an abundant number, since it is smaller than the sum of its proper divisors (154466729052).

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

79929623460 is a wasteful number, since it uses less digits than its factorization.

79929623460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214033 (or 214031 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 79929623460 in words is "seventy-nine billion, nine hundred twenty-nine million, six hundred twenty-three thousand, four hundred sixty".