23187120728 has 16 divisors (see below), whose sum is σ = 43477467000. Its totient is φ = 11593129536.

The previous prime is 23187120727. The next prime is 23187120751. The reversal of 23187120728 is 82702178132.

It is a super-3 number, since 3×23187120728³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23187120727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392303 + ... + 447521.

Almost surely, 2^23187120728 is an apocalyptic number.

It is an amenable number.

23187120728 is a deficient number, since it is larger than the sum of its proper divisors (20290346272).

23187120728 is a wasteful number, since it uses less digits than its factorization.

23187120728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107714 (or 107710 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 23187120728 in words is "twenty-three billion, one hundred eighty-seven million, one hundred twenty thousand, seven hundred twenty-eight".