23406744537 has 24 divisors (see below), whose sum is σ = 38824587360. Its totient is φ = 13439278080.

The previous prime is 23406744511. The next prime is 23406744577. The reversal of 23406744537 is 73544760432.

23406744537 is a `hidden beast` number, since 2 + 3 + 40 + 6 + 74 + 4 + 537 = 666.

It is not a de Polignac number, because 23406744537 - 2¹⁰ = 23406743513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23406744492 and 23406744501.

It is not an unprimeable number, because it can be changed into a prime (23406744577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6220008 + ... + 6223769.

It is an arithmetic number, because the mean of its divisors is an integer number (1617691140).

Almost surely, 2^23406744537 is an apocalyptic number.

It is an amenable number.

23406744537 is a deficient number, since it is larger than the sum of its proper divisors (15417842823).

23406744537 is a wasteful number, since it uses less digits than its factorization.

23406744537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443813 (or 12443810 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 23406744537 in words is "twenty-three billion, four hundred six million, seven hundred forty-four thousand, five hundred thirty-seven".