23427542745 has 48 divisors (see below), whose sum is σ = 42446581632. Its totient is φ = 11930772480.

The previous prime is 23427542737. The next prime is 23427542783. The reversal of 23427542745 is 54724572432.

23427542745 is a `hidden beast` number, since 2 + 34 + 2 + 7 + 542 + 74 + 5 = 666.

It is not a de Polignac number, because 23427542745 - 2³ = 23427542737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23427542745.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 588265 + ... + 626825.

It is an arithmetic number, because the mean of its divisors is an integer number (884303784).

Almost surely, 2^23427542745 is an apocalyptic number.

It is an amenable number.

23427542745 is a deficient number, since it is larger than the sum of its proper divisors (19019038887).

23427542745 is a wasteful number, since it uses less digits than its factorization.

23427542745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39182 (or 39179 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 45.

The spelling of 23427542745 in words is "twenty-three billion, four hundred twenty-seven million, five hundred forty-two thousand, seven hundred forty-five".