9881623488 has 112 divisors (see below), whose sum is σ = 29442216960. Its totient is φ = 2897817600.

The previous prime is 9881623463. The next prime is 9881623511. The reversal of 9881623488 is 8843261889.

It is a super-2 number, since 2×9881623488² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9993 + ... + 140936.

Almost surely, 2^9881623488 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 9881623488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14721108480).

9881623488 is an abundant number, since it is smaller than the sum of its proper divisors (19560593472).

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

9881623488 is a wasteful number, since it uses less digits than its factorization.

9881623488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150986 (or 150976 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 57.

The square root of 9881623488 is about 99406.3553702680. The cubic root of 9881623488 is about 2145.8997743282.

The spelling of 9881623488 in words is "nine billion, eight hundred eighty-one million, six hundred twenty-three thousand, four hundred eighty-eight".