79247279232 has 480 divisors, whose sum is σ = 261406645500. Its totient is φ = 23813222400.

The previous prime is 79247279213. The next prime is 79247279233. The reversal of 79247279232 is 23297274297.

79247279232 is a `hidden beast` number, since 79 + 2 + 472 + 79 + 2 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75528230976 + 3719048256 = 274824^2 + 60984^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (79247279233) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 227069394 + ... + 227069742.

Almost surely, 2^79247279232 is an apocalyptic number.

79247279232 is a gapful number since it is divisible by the number (72) 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 79247279232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130703322750).

79247279232 is an abundant number, since it is smaller than the sum of its proper divisors (182159366268).

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

79247279232 is a wasteful number, since it uses less digits than its factorization.

79247279232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 546 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The spelling of 79247279232 in words is "seventy-nine billion, two hundred forty-seven million, two hundred seventy-nine thousand, two hundred thirty-two".