18094779297 has 80 divisors (see below), whose sum is σ = 31553609472. Its totient is φ = 10120619520.

The previous prime is 18094779289. The next prime is 18094779433. The reversal of 18094779297 is 79297749081.

It is not a de Polignac number, because 18094779297 - 2³ = 18094779289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (18094779697) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5668972 + ... + 5672162.

Almost surely, 2^18094779297 is an apocalyptic number.

It is an amenable number.

18094779297 is a deficient number, since it is larger than the sum of its proper divisors (13458830175).

18094779297 is a wasteful number, since it uses less digits than its factorization.

18094779297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420 (or 3411 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 63.

The spelling of 18094779297 in words is "eighteen billion, ninety-four million, seven hundred seventy-nine thousand, two hundred ninety-seven".