79980392832 has 256 divisors, whose sum is σ = 229847224320. Its totient is φ = 24569487360.

The previous prime is 79980392803. The next prime is 79980392857. The reversal of 79980392832 is 23829308997.

It is a happy number.

It is a super-2 number, since 2×79980392832² (a number of 23 digits) contains 22 as substring.

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, 80220558 + ... + 80221554.

It is an arithmetic number, because the mean of its divisors is an integer number (897840720).

Almost surely, 2^79980392832 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 79980392832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114923612160).

79980392832 is an abundant number, since it is smaller than the sum of its proper divisors (149866831488).

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

79980392832 is a wasteful number, since it uses less digits than its factorization.

79980392832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 79980392832 in words is "seventy-nine billion, nine hundred eighty million, three hundred ninety-two thousand, eight hundred thirty-two".