18240853788794 has 64 divisors (see below), whose sum is σ = 34707444710400. Its totient is φ = 6997831481088.

The previous prime is 18240853788743. The next prime is 18240853788803. The reversal of 18240853788794 is 49788735804281.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8849429 + ... + 10714200.

It is an arithmetic number, because the mean of its divisors is an integer number (542303823600).

Almost surely, 2^{18240853788794} is an apocalyptic number.

18240853788794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18240853788794 is a deficient number, since it is larger than the sum of its proper divisors (16466590921606).

18240853788794 is a wasteful number, since it uses less digits than its factorization.

18240853788794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19563807.

The product of its (nonzero) digits is 867041280, while the sum is 74.

The spelling of 18240853788794 in words is "eighteen trillion, two hundred forty billion, eight hundred fifty-three million, seven hundred eighty-eight thousand, seven hundred ninety-four".