23698861680 has 160 divisors (see below), whose sum is σ = 79494912000. Its totient is φ = 5805757440.

The previous prime is 23698861673. The next prime is 23698861729. The reversal of 23698861680 is 8616889632.

It is a self number, because there is not a number n which added to its sum of digits gives 23698861680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640321 + ... + 676319.

It is an arithmetic number, because the mean of its divisors is an integer number (496843200).

Almost surely, 2^23698861680 is an apocalyptic number.

23698861680 is a gapful number since it is divisible by the number (20) 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 23698861680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39747456000).

23698861680 is an abundant number, since it is smaller than the sum of its proper divisors (55796050320).

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

23698861680 is a wasteful number, since it uses less digits than its factorization.

23698861680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36239 (or 36233 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 23698861680 in words is "twenty-three billion, six hundred ninety-eight million, eight hundred sixty-one thousand, six hundred eighty".