7538857018 has 64 divisors (see below), whose sum is σ = 14369799168. Its totient is φ = 2881105920.

The previous prime is 7538857013. The next prime is 7538857019. The reversal of 7538857018 is 8107588357.

It is not an unprimeable number, because it can be changed into a prime (7538857013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2650305 + ... + 2653147.

It is an arithmetic number, because the mean of its divisors is an integer number (224528112).

Almost surely, 2^7538857018 is an apocalyptic number.

7538857018 is a deficient number, since it is larger than the sum of its proper divisors (6830942150).

7538857018 is a wasteful number, since it uses less digits than its factorization.

7538857018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The square root of 7538857018 is about 86826.5916525577. The cubic root of 7538857018 is about 1960.8084456473.

The spelling of 7538857018 in words is "seven billion, five hundred thirty-eight million, eight hundred fifty-seven thousand, eighteen".