88439938524 has 144 divisors (see below), whose sum is σ = 259359330048. Its totient is φ = 24888052224.

The previous prime is 88439938523. The next prime is 88439938529. The reversal of 88439938524 is 42583993488.

It is a super-2 number, since 2×88439938524² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88439938523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7042419 + ... + 7054965.

Almost surely, 2^88439938524 is an apocalyptic number.

88439938524 is a gapful number since it is divisible by the number (84) 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 88439938524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129679665024).

88439938524 is an abundant number, since it is smaller than the sum of its proper divisors (170919391524).

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

88439938524 is a wasteful number, since it uses less digits than its factorization.

88439938524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12984 (or 12979 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 88439938524 in words is "eighty-eight billion, four hundred thirty-nine million, nine hundred thirty-eight thousand, five hundred twenty-four".