7388231831656 has 16 divisors (see below), whose sum is σ = 14918545044900. Its totient is φ = 3409953153024.

The previous prime is 7388231831521. The next prime is 7388231831663. The reversal of 7388231831656 is 6561381328837.

It can be written as a sum of positive squares in 2 ways, for example, as 6976286082756 + 411945748900 = 2641266^2 + 641830^2 .

It is a super-3 number, since 3×7388231831656³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7388231831594 and 7388231831603.

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, 35520345241 + ... + 35520345448.

Almost surely, 2^{7388231831656} is an apocalyptic number.

It is an amenable number.

7388231831656 is an abundant number, since it is smaller than the sum of its proper divisors (7530313213244).

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

7388231831656 is a wasteful number, since it uses less digits than its factorization.

7388231831656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71040690708 (or 71040690704 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 7388231831656 in words is "seven trillion, three hundred eighty-eight billion, two hundred thirty-one million, eight hundred thirty-one thousand, six hundred fifty-six".