88121873864 has 8 divisors (see below), whose sum is σ = 165228513510. Its totient is φ = 44060936928.

The previous prime is 88121873857. The next prime is 88121873899. The reversal of 88121873864 is 46837812188.

It can be written as a sum of positive squares in only one way, i.e., 84075641764 + 4046232100 = 289958^2 + 63610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5507617109 + ... + 5507617124.

Almost surely, 2^88121873864 is an apocalyptic number.

It is an amenable number.

88121873864 is a deficient number, since it is larger than the sum of its proper divisors (77106639646).

88121873864 is a wasteful number, since it uses less digits than its factorization.

88121873864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015234239 (or 11015234235 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The spelling of 88121873864 in words is "eighty-eight billion, one hundred twenty-one million, eight hundred seventy-three thousand, eight hundred sixty-four".