23864240787 has 16 divisors (see below), whose sum is σ = 33749358720. Its totient is φ = 14957092800.

The previous prime is 23864240761. The next prime is 23864240819. The reversal of 23864240787 is 78704246832.

It is not a de Polignac number, because 23864240787 - 2¹² = 23864236691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23864240707) 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 15 ways as a sum of consecutive naturals, for example, 1590514 + ... + 1605447.

It is an arithmetic number, because the mean of its divisors is an integer number (2109334920).

Almost surely, 2^23864240787 is an apocalyptic number.

23864240787 is a deficient number, since it is larger than the sum of its proper divisors (9885117933).

23864240787 is a wasteful number, since it uses less digits than its factorization.

23864240787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196114.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 23864240787 in words is "twenty-three billion, eight hundred sixty-four million, two hundred forty thousand, seven hundred eighty-seven".