23686736349936 has 80 divisors (see below), whose sum is σ = 66755294851968. Its totient is φ = 7177609094400.

The previous prime is 23686736349923. The next prime is 23686736349977. The reversal of 23686736349936 is 63994363768632.

It is a super-2 number, since 2×23686736349936² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 20074926 + ... + 21222066.

Almost surely, 2^{23686736349936} is an apocalyptic number.

It is an amenable number.

23686736349936 is an abundant number, since it is smaller than the sum of its proper divisors (43068558502032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23686736349936 is a wasteful number, since it uses less digits than its factorization.

23686736349936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186270 (or 1186264 counting only the distinct ones).

The product of its digits is 3809369088, while the sum is 75.

The spelling of 23686736349936 in words is "twenty-three trillion, six hundred eighty-six billion, seven hundred thirty-six million, three hundred forty-nine thousand, nine hundred thirty-six".