23765438688 has 48 divisors (see below), whose sum is σ = 62393264640. Its totient is φ = 7920671616.

The previous prime is 23765438687. The next prime is 23765438701. The reversal of 23765438688 is 88683456732.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×23765438688² (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 (23765438687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893031 + ... + 919257.

It is an arithmetic number, because the mean of its divisors is an integer number (1299859680).

Almost surely, 2^23765438688 is an apocalyptic number.

It is an amenable number.

23765438688 is an abundant number, since it is smaller than the sum of its proper divisors (38627825952).

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

23765438688 is a wasteful number, since it uses less digits than its factorization.

23765438688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35679 (or 35671 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 60.

The spelling of 23765438688 in words is "twenty-three billion, seven hundred sixty-five million, four hundred thirty-eight thousand, six hundred eighty-eight".