3645190564 has 12 divisors (see below), whose sum is σ = 6380550988. Its totient is φ = 1822176000.

The previous prime is 3645190537. The next prime is 3645190573. The reversal of 3645190564 is 4650915463.

It can be written as a sum of positive squares in 2 ways, for example, as 2540160000 + 1105030564 = 50400^2 + 33242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3645190564.

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, 84837 + ... + 120364.

Almost surely, 2^3645190564 is an apocalyptic number.

It is an amenable number.

3645190564 is a deficient number, since it is larger than the sum of its proper divisors (2735360424).

3645190564 is a wasteful number, since it uses less digits than its factorization.

3645190564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209646 (or 209644 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 3645190564 is about 60375.4135720825. The cubic root of 3645190564 is about 1539.0051712829.

The spelling of 3645190564 in words is "three billion, six hundred forty-five million, one hundred ninety thousand, five hundred sixty-four".