20624244631 has 8 divisors (see below), whose sum is σ = 20978816000. Its totient is φ = 20270204640.

The previous prime is 20624244611. The next prime is 20624244661. The reversal of 20624244631 is 13644242602.

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

It is a cyclic number.

It is not a de Polignac number, because 20624244631 - 2²⁷ = 20490026903 is a prime.

It is a super-2 number, since 2×20624244631² (a number of 21 digits) 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 (20624244611) 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, 54156 + ... + 210193.

It is an arithmetic number, because the mean of its divisors is an integer number (2622352000).

Almost surely, 2^20624244631 is an apocalyptic number.

20624244631 is a deficient number, since it is larger than the sum of its proper divisors (354571369).

20624244631 is a wasteful number, since it uses less digits than its factorization.

20624244631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265689.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 20624244631 in words is "twenty billion, six hundred twenty-four million, two hundred forty-four thousand, six hundred thirty-one".