20431072676 has 24 divisors (see below), whose sum is σ = 41183901696. Its totient is φ = 8687226240.

The previous prime is 20431072639. The next prime is 20431072679. The reversal of 20431072676 is 67627013402.

It is not an unprimeable number, because it can be changed into a prime (20431072679) 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, 2869205 + ... + 2876316.

It is an arithmetic number, because the mean of its divisors is an integer number (1715995904).

Almost surely, 2^20431072676 is an apocalyptic number.

It is an amenable number.

20431072676 is an abundant number, since it is smaller than the sum of its proper divisors (20752829020).

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

20431072676 is a wasteful number, since it uses less digits than its factorization.

20431072676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745659 (or 5745657 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 20431072676 in words is "twenty billion, four hundred thirty-one million, seventy-two thousand, six hundred seventy-six".