20247432602631 has 64 divisors (see below), whose sum is σ = 29788635448320. Its totient is φ = 12157731210240.

The previous prime is 20247432602597. The next prime is 20247432602641. The reversal of 20247432602631 is 13620623474202.

It is a happy number.

It is not a de Polignac number, because 20247432602631 - 2⁷ = 20247432602503 is a prime.

It is a super-2 number, since 2×20247432602631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247432602641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100218825 + ... + 100420653.

It is an arithmetic number, because the mean of its divisors is an integer number (465447428880).

Almost surely, 2^{20247432602631} is an apocalyptic number.

20247432602631 is a deficient number, since it is larger than the sum of its proper divisors (9541202845689).

20247432602631 is a wasteful number, since it uses less digits than its factorization.

20247432602631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202296.

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 20247432602631 in words is "twenty trillion, two hundred forty-seven billion, four hundred thirty-two million, six hundred two thousand, six hundred thirty-one".