7626388138 has 8 divisors (see below), whose sum is σ = 11440225440. Its totient is φ = 3812979660.

The previous prime is 7626388127. The next prime is 7626388141. The reversal of 7626388138 is 8318836267.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 58278 + ... + 136561.

It is an arithmetic number, because the mean of its divisors is an integer number (1430028180).

Almost surely, 2^7626388138 is an apocalyptic number.

7626388138 is a deficient number, since it is larger than the sum of its proper divisors (3813837302).

7626388138 is a wasteful number, since it uses less digits than its factorization.

7626388138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214412.

The product of its digits is 2322432, while the sum is 52.

The square root of 7626388138 is about 87329.1940762080. The cubic root of 7626388138 is about 1968.3680247699.

The spelling of 7626388138 in words is "seven billion, six hundred twenty-six million, three hundred eighty-eight thousand, one hundred thirty-eight".