23715240545 has 16 divisors (see below), whose sum is σ = 31258535040. Its totient is φ = 17192191104.

The previous prime is 23715240509. The next prime is 23715240547. The reversal of 23715240545 is 54504251732.

It is a cyclic number.

It is not a de Polignac number, because 23715240545 - 2⁶ = 23715240481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23715240499 and 23715240508.

It is not an unprimeable number, because it can be changed into a prime (23715240547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5424644 + ... + 5429013.

It is an arithmetic number, because the mean of its divisors is an integer number (1953658440).

Almost surely, 2^23715240545 is an apocalyptic number.

It is an amenable number.

23715240545 is a deficient number, since it is larger than the sum of its proper divisors (7543294495).

23715240545 is a wasteful number, since it uses less digits than its factorization.

23715240545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853704.

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 23715240545 in words is "twenty-three billion, seven hundred fifteen million, two hundred forty thousand, five hundred forty-five".