3645636524 has 12 divisors (see below), whose sum is σ = 6535470648. Its totient is φ = 1778359200.

The previous prime is 3645636523. The next prime is 3645636569. The reversal of 3645636524 is 4256365463.

It is a super-3 number, since 3×3645636524³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3645636523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11114582 + ... + 11114909.

It is an arithmetic number, because the mean of its divisors is an integer number (544622554).

Almost surely, 2^3645636524 is an apocalyptic number.

It is an amenable number.

3645636524 is a deficient number, since it is larger than the sum of its proper divisors (2889834124).

3645636524 is a wasteful number, since it uses less digits than its factorization.

3645636524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22229536 (or 22229534 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 44.

The square root of 3645636524 is about 60379.1066843490. The cubic root of 3645636524 is about 1539.0679303940.

The spelling of 3645636524 in words is "three billion, six hundred forty-five million, six hundred thirty-six thousand, five hundred twenty-four".