23007178985 has 24 divisors (see below), whose sum is σ = 32202373896. Its totient is φ = 15733992960.

The previous prime is 23007178963. The next prime is 23007179071. The reversal of 23007178985 is 58987170032.

It can be written as a sum of positive squares in 4 ways, for example, as 1570009 + 23005608976 = 1253^2 + 151676^2 .

It is not a de Polignac number, because 23007178985 - 2³² = 18712211689 is a prime.

It is an unprimeable number.

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, 34496 + ... + 217265.

It is an arithmetic number, because the mean of its divisors is an integer number (1341765579).

Almost surely, 2^23007178985 is an apocalyptic number.

It is an amenable number.

23007178985 is a deficient number, since it is larger than the sum of its proper divisors (9195194911).

23007178985 is a wasteful number, since it uses less digits than its factorization.

23007178985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252153 (or 252146 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 23007178985 in words is "twenty-three billion, seven million, one hundred seventy-eight thousand, nine hundred eighty-five".