7639474018 has 16 divisors (see below), whose sum is σ = 12560211360. Its totient is φ = 3456028800.

The previous prime is 7639474009. The next prime is 7639474021. The reversal of 7639474018 is 8104749367.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818223 + ... + 827506.

It is an arithmetic number, because the mean of its divisors is an integer number (785013210).

Almost surely, 2^7639474018 is an apocalyptic number.

7639474018 is a deficient number, since it is larger than the sum of its proper divisors (4920737342).

7639474018 is a wasteful number, since it uses less digits than its factorization.

7639474018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645953.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 7639474018 is about 87404.0846757175. The cubic root of 7639474018 is about 1969.4932017641.

The spelling of 7639474018 in words is "seven billion, six hundred thirty-nine million, four hundred seventy-four thousand, eighteen".