3645895464 has 24 divisors (see below), whose sum is σ = 9874300410. Its totient is φ = 1215298464.

The previous prime is 3645895441. The next prime is 3645895499. The reversal of 3645895464 is 4645985463.

3645895464 is a `hidden beast` number, since 3 + 6 + 4 + 589 + 54 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3392130564 + 253764900 = 58242^2 + 15930^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3645895464.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25318647 + ... + 25318790.

Almost surely, 2^3645895464 is an apocalyptic number.

It is an amenable number.

3645895464 is an abundant number, since it is smaller than the sum of its proper divisors (6228404946).

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

3645895464 is a wasteful number, since it uses less digits than its factorization.

3645895464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50637449 (or 50637442 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The square root of 3645895464 is about 60381.2509310630. The cubic root of 3645895464 is about 1539.1043681841.

The spelling of 3645895464 in words is "three billion, six hundred forty-five million, eight hundred ninety-five thousand, four hundred sixty-four".