23450513455544 has 48 divisors (see below), whose sum is σ = 51516415855800. Its totient is φ = 9977916287808.

The previous prime is 23450513455543. The next prime is 23450513455583. The reversal of 23450513455544 is 44555431505432.

It is a junction number, because it is equal to n+sod(n) for n = 23450513455492 and 23450513455501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23450513455543) 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, 215135219 + ... + 215244194.

Almost surely, 2^{23450513455544} is an apocalyptic number.

It is an amenable number.

23450513455544 is an abundant number, since it is smaller than the sum of its proper divisors (28065902400256).

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

23450513455544 is a wasteful number, since it uses less digits than its factorization.

23450513455544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430379572 (or 430379561 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 50.

The spelling of 23450513455544 in words is "twenty-three trillion, four hundred fifty billion, five hundred thirteen million, four hundred fifty-five thousand, five hundred forty-four".