22731963901920 has 384 divisors, whose sum is σ = 97922307732480. Its totient is φ = 4796194498560.

The previous prime is 22731963901841. The next prime is 22731963901921. The reversal of 22731963901920 is 2910936913722.

22731963901920 is a `hidden beast` number, since 227 + 3 + 1 + 9 + 6 + 390 + 1 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22731963901921) 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, 28519126 + ... + 29305365.

It is an arithmetic number, because the mean of its divisors is an integer number (255006009720).

Almost surely, 2^{22731963901920} is an apocalyptic number.

22731963901920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22731963901920 is an abundant number, since it is smaller than the sum of its proper divisors (75190343830560).

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

22731963901920 is a wasteful number, since it uses less digits than its factorization.

22731963901920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57824535 (or 57824521 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 22731963901920 in words is "twenty-two trillion, seven hundred thirty-one billion, nine hundred sixty-three million, nine hundred one thousand, nine hundred twenty".