7268638056 has 16 divisors (see below), whose sum is σ = 18171595200. Its totient is φ = 2422879344.

The previous prime is 7268638051. The next prime is 7268638057. The reversal of 7268638056 is 6508368627.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7268638051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151429936 + ... + 151429983.

It is an arithmetic number, because the mean of its divisors is an integer number (1135724700).

Almost surely, 2^7268638056 is an apocalyptic number.

It is an amenable number.

7268638056 is an abundant number, since it is smaller than the sum of its proper divisors (10902957144).

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

7268638056 is a wasteful number, since it uses less digits than its factorization.

7268638056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302859928 (or 302859924 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 7268638056 is about 85256.3080129559. The cubic root of 7268638056 is about 1937.0954210166.

The spelling of 7268638056 in words is "seven billion, two hundred sixty-eight million, six hundred thirty-eight thousand, fifty-six".