23317017864 has 128 divisors (see below), whose sum is σ = 69443036160. Its totient is φ = 6385091328.

The previous prime is 23317017859. The next prime is 23317017869. The reversal of 23317017864 is 46871071332.

It is an interprime number because it is at equal distance from previous prime (23317017859) and next prime (23317017869).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23317017869) 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, 388479 + ... + 444465.

It is an arithmetic number, because the mean of its divisors is an integer number (542523720).

Almost surely, 2^23317017864 is an apocalyptic number.

23317017864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23317017864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34721518080).

23317017864 is an abundant number, since it is smaller than the sum of its proper divisors (46126018296).

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

23317017864 is a wasteful number, since it uses less digits than its factorization.

23317017864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56107 (or 56103 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 23317017864 in words is "twenty-three billion, three hundred seventeen million, seventeen thousand, eight hundred sixty-four".