23420724570464 has 72 divisors (see below), whose sum is σ = 50057635052880. Its totient is φ = 10781776132608.

The previous prime is 23420724570457. The next prime is 23420724570469. The reversal of 23420724570464 is 46407542702432.

It is a super-2 number, since 2×23420724570464² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420724570469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3462812 + ... + 7670235.

It is an arithmetic number, because the mean of its divisors is an integer number (695244931290).

Almost surely, 2^{23420724570464} is an apocalyptic number.

It is an amenable number.

23420724570464 is an abundant number, since it is smaller than the sum of its proper divisors (26636910482416).

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

23420724570464 is a wasteful number, since it uses less digits than its factorization.

23420724570464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11133472 (or 11133451 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 50.

The spelling of 23420724570464 in words is "twenty-three trillion, four hundred twenty billion, seven hundred twenty-four million, five hundred seventy thousand, four hundred sixty-four".