888997172427 has 64 divisors (see below), whose sum is σ = 1636701480960. Its totient is φ = 464368816512.

The previous prime is 888997172417. The next prime is 888997172449. The reversal of 888997172427 is 724271799888.

It is not a de Polignac number, because 888997172427 - 2²⁷ = 888862954699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (888997172407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1503348 + ... + 2009489.

It is an arithmetic number, because the mean of its divisors is an integer number (25573460640).

Almost surely, 2^888997172427 is an apocalyptic number.

888997172427 is a deficient number, since it is larger than the sum of its proper divisors (747704308533).

888997172427 is a wasteful number, since it uses less digits than its factorization.

888997172427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512969 (or 3512963 counting only the distinct ones).

The product of its digits is 227598336, while the sum is 72.

The spelling of 888997172427 in words is "eight hundred eighty-eight billion, nine hundred ninety-seven million, one hundred seventy-two thousand, four hundred twenty-seven".