9172866874 has 8 divisors (see below), whose sum is σ = 13769978580. Its totient is φ = 4582874016.

The previous prime is 9172866839. The next prime is 9172866889. The reversal of 9172866874 is 4786682719.

It can be written as a sum of positive squares in 2 ways, for example, as 8418980025 + 753886849 = 91755^2 + 27457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776489 + ... + 1781644.

Almost surely, 2^9172866874 is an apocalyptic number.

9172866874 is a deficient number, since it is larger than the sum of its proper divisors (4597111706).

9172866874 is a wasteful number, since it uses less digits than its factorization.

9172866874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559424.

The product of its digits is 8128512, while the sum is 58.

The square root of 9172866874 is about 95775.0848289888. The cubic root of 9172866874 is about 2093.3171436794.

The spelling of 9172866874 in words is "nine billion, one hundred seventy-two million, eight hundred sixty-six thousand, eight hundred seventy-four".