18097916394 has 16 divisors (see below), whose sum is σ = 36789207840. Its totient is φ = 5933742960.

The previous prime is 18097916387. The next prime is 18097916429. The reversal of 18097916394 is 49361979081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24723564 + ... + 24724295.

It is an arithmetic number, because the mean of its divisors is an integer number (2299325490).

Almost surely, 2^18097916394 is an apocalyptic number.

18097916394 is an abundant number, since it is smaller than the sum of its proper divisors (18691291446).

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

18097916394 is a wasteful number, since it uses less digits than its factorization.

18097916394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49447925.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 18097916394 in words is "eighteen billion, ninety-seven million, nine hundred sixteen thousand, three hundred ninety-four".