72715427292 has 48 divisors (see below), whose sum is σ = 179717946912. Its totient is φ = 22804039680.

The previous prime is 72715427273. The next prime is 72715427299. The reversal of 72715427292 is 29272451727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72715427299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483192 + ... + 615552.

It is an arithmetic number, because the mean of its divisors is an integer number (3744123894).

Almost surely, 2^72715427292 is an apocalyptic number.

It is an amenable number.

72715427292 is an abundant number, since it is smaller than the sum of its proper divisors (107002519620).

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

72715427292 is a wasteful number, since it uses less digits than its factorization.

72715427292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135078 (or 135076 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The spelling of 72715427292 in words is "seventy-two billion, seven hundred fifteen million, four hundred twenty-seven thousand, two hundred ninety-two".