88239149691 has 24 divisors (see below), whose sum is σ = 147794502912. Its totient is φ = 45838518000.

The previous prime is 88239149681. The next prime is 88239149693. The reversal of 88239149691 is 19694193288.

It is not a de Polignac number, because 88239149691 - 2⁵ = 88239149659 is a prime.

It is a super-2 number, since 2×88239149691² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88239149693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17360535 + ... + 17365616.

It is an arithmetic number, because the mean of its divisors is an integer number (6158104288).

Almost surely, 2^88239149691 is an apocalyptic number.

88239149691 is a deficient number, since it is larger than the sum of its proper divisors (59555353221).

88239149691 is a wasteful number, since it uses less digits than its factorization.

88239149691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34726183 (or 34726172 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The spelling of 88239149691 in words is "eighty-eight billion, two hundred thirty-nine million, one hundred forty-nine thousand, six hundred ninety-one".