7138637568231 has 64 divisors (see below), whose sum is σ = 10913786956800. Its totient is φ = 4114013359104.

The previous prime is 7138637568203. The next prime is 7138637568319. The reversal of 7138637568231 is 1328657368317.

It is a happy number.

It is not a de Polignac number, because 7138637568231 - 2⁵ = 7138637568199 is a prime.

It is a super-2 number, since 2×7138637568231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138637568431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 325315446 + ... + 325337388.

It is an arithmetic number, because the mean of its divisors is an integer number (170527921200).

Almost surely, 2^{7138637568231} is an apocalyptic number.

7138637568231 is a deficient number, since it is larger than the sum of its proper divisors (3775149388569).

7138637568231 is a wasteful number, since it uses less digits than its factorization.

7138637568231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27000.

The product of its digits is 30481920, while the sum is 60.

The spelling of 7138637568231 in words is "seven trillion, one hundred thirty-eight billion, six hundred thirty-seven million, five hundred sixty-eight thousand, two hundred thirty-one".