7138631535872 has 36 divisors (see below), whose sum is σ = 14634496130436. Its totient is φ = 3472847769600.

The previous prime is 7138631535821. The next prime is 7138631535901. The reversal of 7138631535872 is 2785351368317.

It can be written as a sum of positive squares in 2 ways, for example, as 4556619621376 + 2582011914496 = 2134624^2 + 1606864^2 .

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, 376818629 + ... + 376837572.

It is an arithmetic number, because the mean of its divisors is an integer number (406513781401).

Almost surely, 2^{7138631535872} is an apocalyptic number.

It is an amenable number.

7138631535872 is an abundant number, since it is smaller than the sum of its proper divisors (7495864594564).

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

7138631535872 is an equidigital number, since it uses as much as digits as its factorization.

7138631535872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753656254 (or 753656240 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 59.

The spelling of 7138631535872 in words is "seven trillion, one hundred thirty-eight billion, six hundred thirty-one million, five hundred thirty-five thousand, eight hundred seventy-two".