72531030425312 has 24 divisors (see below), whose sum is σ = 144209282652792. Its totient is φ = 35906450704000.

The previous prime is 72531030425309. The next prime is 72531030425327. The reversal of 72531030425312 is 21352403013527.

72531030425312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×72531030425312² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11220762614 + ... + 11220769077.

It is an arithmetic number, because the mean of its divisors is an integer number (6008720110533).

Almost surely, 2^{72531030425312} is an apocalyptic number.

It is an amenable number.

72531030425312 is a deficient number, since it is larger than the sum of its proper divisors (71678252227480).

72531030425312 is a wasteful number, since it uses less digits than its factorization.

72531030425312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22441531802 (or 22441531794 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

Adding to 72531030425312 its reverse (21352403013527), we get a palindrome (93883433438839).

The spelling of 72531030425312 in words is "seventy-two trillion, five hundred thirty-one billion, thirty million, four hundred twenty-five thousand, three hundred twelve".