18294804894 has 32 divisors (see below), whose sum is σ = 37309693824. Its totient is φ = 5978437920.

The previous prime is 18294804893. The next prime is 18294804967. The reversal of 18294804894 is 49840849281.

It is a super-2 number, since 2×18294804894² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18294804893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388257 + ... + 432819.

It is an arithmetic number, because the mean of its divisors is an integer number (1165927932).

Almost surely, 2^18294804894 is an apocalyptic number.

18294804894 is an abundant number, since it is smaller than the sum of its proper divisors (19014888930).

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

18294804894 is a wasteful number, since it uses less digits than its factorization.

18294804894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45912.

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 18294804894 in words is "eighteen billion, two hundred ninety-four million, eight hundred four thousand, eight hundred ninety-four".