23809287857088 has 112 divisors (see below), whose sum is σ = 64375512721920. Its totient is φ = 7762766567424.

The previous prime is 23809287857081. The next prime is 23809287857093. The reversal of 23809287857088 is 88075878290832.

It is a super-2 number, since 2×23809287857088² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23809287857081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13795020 + ... + 15424692.

Almost surely, 2^{23809287857088} 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 23809287857088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32187756360960).

23809287857088 is an abundant number, since it is smaller than the sum of its proper divisors (40566224864832).

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

23809287857088 is a wasteful number, since it uses less digits than its factorization.

23809287857088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631354 (or 1631344 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 75.

The spelling of 23809287857088 in words is "twenty-three trillion, eight hundred nine billion, two hundred eighty-seven million, eight hundred fifty-seven thousand, eighty-eight".