23709682836 has 72 divisors (see below), whose sum is σ = 72099634880. Its totient is φ = 6417657216.

The previous prime is 23709682823. The next prime is 23709682853. The reversal of 23709682836 is 63828690732.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2471161 + ... + 2480736.

Almost surely, 2^23709682836 is an apocalyptic number.

It is an amenable number.

23709682836 is an abundant number, since it is smaller than the sum of its proper divisors (48389952044).

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

23709682836 is a wasteful number, since it uses less digits than its factorization.

23709682836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951933 (or 4951928 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 23709682836 in words is "twenty-three billion, seven hundred nine million, six hundred eighty-two thousand, eight hundred thirty-six".