79285930172 has 24 divisors (see below), whose sum is σ = 140333054400. Its totient is φ = 39190922496.

The previous prime is 79285930147. The next prime is 79285930177. The reversal of 79285930172 is 27103958297.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79285930177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608253 + ... + 2638475.

It is an arithmetic number, because the mean of its divisors is an integer number (5847210600).

Almost surely, 2^79285930172 is an apocalyptic number.

It is an amenable number.

79285930172 is a deficient number, since it is larger than the sum of its proper divisors (61047124228).

79285930172 is a wasteful number, since it uses less digits than its factorization.

79285930172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37685 (or 37683 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 79285930172 in words is "seventy-nine billion, two hundred eighty-five million, nine hundred thirty thousand, one hundred seventy-two".