72712842312 has 64 divisors (see below), whose sum is σ = 198879494400. Its totient is φ = 21970667840.

The previous prime is 72712842277. The next prime is 72712842343. The reversal of 72712842312 is 21324821727.

It is a super-3 number, since 3×72712842312³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305262 + ... + 488477.

It is an arithmetic number, because the mean of its divisors is an integer number (3107492100).

Almost surely, 2^72712842312 is an apocalyptic number.

It is an amenable number.

72712842312 is an abundant number, since it is smaller than the sum of its proper divisors (126166652088).

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

72712842312 is a wasteful number, since it uses less digits than its factorization.

72712842312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794106 (or 794102 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The spelling of 72712842312 in words is "seventy-two billion, seven hundred twelve million, eight hundred forty-two thousand, three hundred twelve".