20939012952 has 64 divisors (see below), whose sum is σ = 61499208960. Its totient is φ = 5857065600.

The previous prime is 20939012933. The next prime is 20939012957. The reversal of 20939012952 is 25921093902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20939012957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3047124 + ... + 3053987.

It is an arithmetic number, because the mean of its divisors is an integer number (960925140).

Almost surely, 2^20939012952 is an apocalyptic number.

20939012952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20939012952 is an abundant number, since it is smaller than the sum of its proper divisors (40560196008).

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

20939012952 is a wasteful number, since it uses less digits than its factorization.

20939012952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101144 (or 6101140 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 20939012952 in words is "twenty billion, nine hundred thirty-nine million, twelve thousand, nine hundred fifty-two".