20934930772 has 48 divisors (see below), whose sum is σ = 44353733760. Its totient is φ = 8440353792.

The previous prime is 20934930701. The next prime is 20934930787. The reversal of 20934930772 is 27703943902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129879 + ... + 1148257.

It is an arithmetic number, because the mean of its divisors is an integer number (924036120).

Almost surely, 2^20934930772 is an apocalyptic number.

It is an amenable number.

20934930772 is an abundant number, since it is smaller than the sum of its proper divisors (23418802988).

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

20934930772 is a wasteful number, since it uses less digits than its factorization.

20934930772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800 (or 20798 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 20934930772 in words is "twenty billion, nine hundred thirty-four million, nine hundred thirty thousand, seven hundred seventy-two".