7638660594 has 24 divisors (see below), whose sum is σ = 17270016192. Its totient is φ = 2435514840.

The previous prime is 7638660593. The next prime is 7638660607. The reversal of 7638660594 is 4950668367.

It is a self number, because there is not a number n which added to its sum of digits gives 7638660594.

It is not an unprimeable number, because it can be changed into a prime (7638660593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9225022 + ... + 9225849.

It is an arithmetic number, because the mean of its divisors is an integer number (719584008).

Almost surely, 2^7638660594 is an apocalyptic number.

7638660594 is an abundant number, since it is smaller than the sum of its proper divisors (9631355598).

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

7638660594 is a wasteful number, since it uses less digits than its factorization.

7638660594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18450902 (or 18450899 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 7638660594 is about 87399.4313139393. The cubic root of 7638660594 is about 1969.4232977412.

The spelling of 7638660594 in words is "seven billion, six hundred thirty-eight million, six hundred sixty thousand, five hundred ninety-four".