79272172288 has 72 divisors (see below), whose sum is σ = 166017735296. Its totient is φ = 37728460800.

The previous prime is 79272172271. The next prime is 79272172327. The reversal of 79272172288 is 88227127297.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402220 + ... + 565972.

Almost surely, 2^79272172288 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 79272172288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83008867648).

79272172288 is an abundant number, since it is smaller than the sum of its proper divisors (86745563008).

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

79272172288 is a wasteful number, since it uses less digits than its factorization.

79272172288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163861 (or 163847 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 55.

The spelling of 79272172288 in words is "seventy-nine billion, two hundred seventy-two million, one hundred seventy-two thousand, two hundred eighty-eight".