72531030424626 has 12 divisors (see below), whose sum is σ = 157150565920062. Its totient is φ = 24177010141536.

The previous prime is 72531030424621. The next prime is 72531030424627. The reversal of 72531030424626 is 62642403013527.

72531030424626 is a `hidden beast` number, since 7 + 2 + 5 + 3 + 10 + 3 + 0 + 4 + 2 + 4 + 626 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62560902107025 + 9970128317601 = 7909545^2 + 3157551^2 .

It is not an unprimeable number, because it can be changed into a prime (72531030424621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2014750845111 + ... + 2014750845146.

Almost surely, 2^{72531030424626} is an apocalyptic number.

72531030424626 is an abundant number, since it is smaller than the sum of its proper divisors (84619535495436).

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

72531030424626 is a wasteful number, since it uses less digits than its factorization.

72531030424626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029501690265 (or 4029501690262 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 72531030424626 in words is "seventy-two trillion, five hundred thirty-one billion, thirty million, four hundred twenty-four thousand, six hundred twenty-six".