3645963633 has 16 divisors (see below), whose sum is σ = 5543185536. Its totient is φ = 2111688960.

The previous prime is 3645963631. The next prime is 3645963647. The reversal of 3645963633 is 3363695463.

It is not a de Polignac number, because 3645963633 - 2¹ = 3645963631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3645963631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748933 + ... + 2750258.

It is an arithmetic number, because the mean of its divisors is an integer number (346449096).

Almost surely, 2^3645963633 is an apocalyptic number.

It is an amenable number.

3645963633 is a deficient number, since it is larger than the sum of its proper divisors (1897221903).

3645963633 is a wasteful number, since it uses less digits than its factorization.

3645963633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499224.

The product of its digits is 3149280, while the sum is 48.

The square root of 3645963633 is about 60381.8154165640. The cubic root of 3645963633 is about 1539.1139605739.

The spelling of 3645963633 in words is "three billion, six hundred forty-five million, nine hundred sixty-three thousand, six hundred thirty-three".