9172942858 has 16 divisors (see below), whose sum is σ = 14572535040. Its totient is φ = 4315569856.

The previous prime is 9172942853. The next prime is 9172942871. The reversal of 9172942858 is 8582492719.

It is a super-2 number, since 2×9172942858² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9172942799 and 9172942808.

It is not an unprimeable number, because it can be changed into a prime (9172942853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108135 + ... + 173317.

It is an arithmetic number, because the mean of its divisors is an integer number (910783440).

Almost surely, 2^9172942858 is an apocalyptic number.

9172942858 is a deficient number, since it is larger than the sum of its proper divisors (5399592182).

9172942858 is a wasteful number, since it uses less digits than its factorization.

9172942858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69341.

The product of its digits is 2903040, while the sum is 55.

The square root of 9172942858 is about 95775.4815075341. The cubic root of 9172942858 is about 2093.3229237033.

The spelling of 9172942858 in words is "nine billion, one hundred seventy-two million, nine hundred forty-two thousand, eight hundred fifty-eight".