3642813631 has 8 divisors (see below), whose sum is σ = 3721383360. Its totient is φ = 3564288288.

The previous prime is 3642813613. The next prime is 3642813653. The reversal of 3642813631 is 1363182463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642813631 is a prime.

It is a super-2 number, since 2×3642813631² = 26540182300398808322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642811631) 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, 195885 + ... + 213673.

It is an arithmetic number, because the mean of its divisors is an integer number (465172920).

Almost surely, 2^3642813631 is an apocalyptic number.

3642813631 is a deficient number, since it is larger than the sum of its proper divisors (78569729).

3642813631 is a wasteful number, since it uses less digits than its factorization.

3642813631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22193.

The product of its digits is 62208, while the sum is 37.

The square root of 3642813631 is about 60355.7257515805. The cubic root of 3642813631 is about 1538.6705836007.

The spelling of 3642813631 in words is "three billion, six hundred forty-two million, eight hundred thirteen thousand, six hundred thirty-one".