23178512685 has 16 divisors (see below), whose sum is σ = 37099425600. Its totient is φ = 12357271680.

The previous prime is 23178512659. The next prime is 23178512713. The reversal of 23178512685 is 58621587132.

It is not a de Polignac number, because 23178512685 - 2⁹ = 23178512173 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245776 + ... + 326745.

It is an arithmetic number, because the mean of its divisors is an integer number (2318714100).

Almost surely, 2^23178512685 is an apocalyptic number.

It is an amenable number.

23178512685 is a deficient number, since it is larger than the sum of its proper divisors (13920912915).

23178512685 is a wasteful number, since it uses less digits than its factorization.

23178512685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575228.

The product of its digits is 806400, while the sum is 48.

The spelling of 23178512685 in words is "twenty-three billion, one hundred seventy-eight million, five hundred twelve thousand, six hundred eighty-five".