23982931685 has 16 divisors (see below), whose sum is σ = 29484589680. Its totient is φ = 18720299520.

The previous prime is 23982931681. The next prime is 23982931711. The reversal of 23982931685 is 58613928932.

It can be written as a sum of positive squares in 8 ways, for example, as 3324906244 + 20658025441 = 57662^2 + 143729^2 .

It is not a de Polignac number, because 23982931685 - 2² = 23982931681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23982931685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23982931681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202040 + ... + 297969.

It is an arithmetic number, because the mean of its divisors is an integer number (1842786855).

Almost surely, 2^23982931685 is an apocalyptic number.

It is an amenable number.

23982931685 is a deficient number, since it is larger than the sum of its proper divisors (5501657995).

23982931685 is a wasteful number, since it uses less digits than its factorization.

23982931685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500248.

The product of its digits is 5598720, while the sum is 56.

The spelling of 23982931685 in words is "twenty-three billion, nine hundred eighty-two million, nine hundred thirty-one thousand, six hundred eighty-five".