3651634624 has 56 divisors (see below), whose sum is σ = 8321040000. Its totient is φ = 1572468480.

The previous prime is 3651634577. The next prime is 3651634627. The reversal of 3651634624 is 4264361563.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651634627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123124 + ... + 149875.

It is an arithmetic number, because the mean of its divisors is an integer number (148590000).

Almost surely, 2^3651634624 is an apocalyptic number.

It is an amenable number.

3651634624 is an abundant number, since it is smaller than the sum of its proper divisors (4669405376).

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

3651634624 is a wasteful number, since it uses less digits than its factorization.

3651634624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273041 (or 273031 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

The square root of 3651634624 is about 60428.7565981628. The cubic root of 3651634624 is about 1539.9115348069.

The spelling of 3651634624 in words is "three billion, six hundred fifty-one million, six hundred thirty-four thousand, six hundred twenty-four".