20468956272 has 80 divisors (see below), whose sum is σ = 57456798720. Its totient is φ = 6255360000.

The previous prime is 20468956271. The next prime is 20468956279. The reversal of 20468956272 is 27265986402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468956271) 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, 333729 + ... + 390272.

It is an arithmetic number, because the mean of its divisors is an integer number (718209984).

Almost surely, 2^20468956272 is an apocalyptic number.

It is an amenable number.

20468956272 is an abundant number, since it is smaller than the sum of its proper divisors (36987842448).

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

20468956272 is a wasteful number, since it uses less digits than its factorization.

20468956272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724062 (or 724056 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 20468956272 in words is "twenty billion, four hundred sixty-eight million, nine hundred fifty-six thousand, two hundred seventy-two".