23721609216 has 48 divisors (see below), whose sum is σ = 63242197200. Its totient is φ = 7907201024.

The previous prime is 23721609157. The next prime is 23721609227. The reversal of 23721609216 is 61290612732.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×23721609216² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924326 + ... + 1936613.

It is an arithmetic number, because the mean of its divisors is an integer number (1317545775).

Almost surely, 2^23721609216 is an apocalyptic number.

It is an amenable number.

23721609216 is an abundant number, since it is smaller than the sum of its proper divisors (39520587984).

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

23721609216 is an equidigital number, since it uses as much as digits as its factorization.

23721609216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860964 (or 3860944 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 23721609216 in words is "twenty-three billion, seven hundred twenty-one million, six hundred nine thousand, two hundred sixteen".