23691420488 has 12 divisors (see below), whose sum is σ = 44422229715. Its totient is φ = 11845492568.

The previous prime is 23691420469. The next prime is 23691420547. The reversal of 23691420488 is 88402419632.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11845710244 + 11845710244 = 108838^2 + 108838^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=108838.

It is a super-2 number, since 2×23691420488² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 408143 + ... + 462561.

Almost surely, 2^23691420488 is an apocalyptic number.

It is an amenable number.

23691420488 is a deficient number, since it is larger than the sum of its proper divisors (20730809227).

23691420488 is an frugal number, since it uses more digits than its factorization.

23691420488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108844 (or 54421 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 23691420488 in words is "twenty-three billion, six hundred ninety-one million, four hundred twenty thousand, four hundred eighty-eight".