18336856890374 has 16 divisors (see below), whose sum is σ = 30005859317760. Its totient is φ = 8334908978760.

The previous prime is 18336856890347. The next prime is 18336856890409. The reversal of 18336856890374 is 47309865863381.

It is a junction number, because it is equal to n+sod(n) for n = 18336856890298 and 18336856890307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7141247 + ... + 9363285.

It is an arithmetic number, because the mean of its divisors is an integer number (1875366207360).

Almost surely, 2^{18336856890374} is an apocalyptic number.

18336856890374 is a deficient number, since it is larger than the sum of its proper divisors (11669002427386).

18336856890374 is a wasteful number, since it uses less digits than its factorization.

18336856890374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597155.

The product of its (nonzero) digits is 627056640, while the sum is 71.

The spelling of 18336856890374 in words is "eighteen trillion, three hundred thirty-six billion, eight hundred fifty-six million, eight hundred ninety thousand, three hundred seventy-four".