7138712256 has 56 divisors (see below), whose sum is σ = 20340760944. Its totient is φ = 2196526080.

The previous prime is 7138712237. The next prime is 7138712261. The reversal of 7138712256 is 6522178317.

It is a super-2 number, since 2×7138712256² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427535 + ... + 1432526.

It is an arithmetic number, because the mean of its divisors is an integer number (363227874).

Almost surely, 2^7138712256 is an apocalyptic number.

It is an amenable number.

7138712256 is an abundant number, since it is smaller than the sum of its proper divisors (13202048688).

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

7138712256 is a wasteful number, since it uses less digits than its factorization.

7138712256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860089 (or 2860079 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 7138712256 is about 84490.9004331236. The cubic root of 7138712256 is about 1925.4841987471.

The spelling of 7138712256 in words is "seven billion, one hundred thirty-eight million, seven hundred twelve thousand, two hundred fifty-six".