88547261138 has 18 divisors (see below), whose sum is σ = 154511075511. Its totient is φ = 37947563724.

The previous prime is 88547261083. The next prime is 88547261149. The reversal of 88547261138 is 83116274588.

It can be written as a sum of positive squares in only one way, i.e., 44273630569 + 44273630569 = 210413^2 + 210413^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=210413.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88547261138.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2930753 + ... + 2960811.

Almost surely, 2^88547261138 is an apocalyptic number.

88547261138 is a deficient number, since it is larger than the sum of its proper divisors (65963814373).

88547261138 is an frugal number, since it uses more digits than its factorization.

88547261138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60134 (or 30068 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The spelling of 88547261138 in words is "eighty-eight billion, five hundred forty-seven million, two hundred sixty-one thousand, one hundred thirty-eight".