23257139088 has 120 divisors (see below), whose sum is σ = 63720061536. Its totient is φ = 7308403200.

The previous prime is 23257139047. The next prime is 23257139117. The reversal of 23257139088 is 88093175232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 3653028 + ... + 3659388.

Almost surely, 2^23257139088 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 23257139088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31860030768).

23257139088 is an abundant number, since it is smaller than the sum of its proper divisors (40462922448).

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

23257139088 is a wasteful number, since it uses less digits than its factorization.

23257139088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6621 (or 6596 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 23257139088 in words is "twenty-three billion, two hundred fifty-seven million, one hundred thirty-nine thousand, eighty-eight".