9172942794 has 16 divisors (see below), whose sum is σ = 20384317440. Its totient is φ = 3057647580.

The previous prime is 9172942787. The next prime is 9172942799. The reversal of 9172942794 is 4972492719.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 169869311 = 9172942794 / (9 + 1 + 7 + 2 + 9 + 4 + 2 + 7 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 9172942794.

It is not an unprimeable number, because it can be changed into a prime (9172942799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84934602 + ... + 84934709.

It is an arithmetic number, because the mean of its divisors is an integer number (1274019840).

Almost surely, 2^9172942794 is an apocalyptic number.

9172942794 is an abundant number, since it is smaller than the sum of its proper divisors (11211374646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9172942794 is a wasteful number, since it uses less digits than its factorization.

9172942794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169869322 (or 169869316 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 9172942794 is about 95775.4811734193. The cubic root of 9172942794 is about 2093.3229188349.

The spelling of 9172942794 in words is "nine billion, one hundred seventy-two million, nine hundred forty-two thousand, seven hundred ninety-four".