23745573455 has 4 divisors (see below), whose sum is σ = 28494688152. Its totient is φ = 18996458760.

The previous prime is 23745573431. The next prime is 23745573461. The reversal of 23745573455 is 55437554732.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23745573455 - 2¹⁸ = 23745311311 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2374557341 + ... + 2374557350.

It is an arithmetic number, because the mean of its divisors is an integer number (7123672038).

Almost surely, 2^23745573455 is an apocalyptic number.

23745573455 is a deficient number, since it is larger than the sum of its proper divisors (4749114697).

23745573455 is an equidigital number, since it uses as much as digits as its factorization.

23745573455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749114696.

The product of its digits is 8820000, while the sum is 50.

The spelling of 23745573455 in words is "twenty-three billion, seven hundred forty-five million, five hundred seventy-three thousand, four hundred fifty-five".