23688687036 has 96 divisors (see below), whose sum is σ = 63850913280. Its totient is φ = 6695426304.

The previous prime is 23688687017. The next prime is 23688687037. The reversal of 23688687036 is 63078688632.

It is a super-2 number, since 2×23688687036² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23688687037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7075915 + ... + 7079261.

It is an arithmetic number, because the mean of its divisors is an integer number (665113680).

Almost surely, 2^23688687036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23688687036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31925456640).

23688687036 is an abundant number, since it is smaller than the sum of its proper divisors (40162226244).

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

23688687036 is a wasteful number, since it uses less digits than its factorization.

23688687036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 23688687036 in words is "twenty-three billion, six hundred eighty-eight million, six hundred eighty-seven thousand, thirty-six".