18336826894 has 4 divisors (see below), whose sum is σ = 27505240344. Its totient is φ = 9168413446.

The previous prime is 18336826883. The next prime is 18336826903. The reversal of 18336826894 is 49862863381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49862863381 = 2467 ⋅20211943.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584206722 + ... + 4584206725.

It is an arithmetic number, because the mean of its divisors is an integer number (6876310086).

Almost surely, 2^18336826894 is an apocalyptic number.

18336826894 is a deficient number, since it is larger than the sum of its proper divisors (9168413450).

18336826894 is an equidigital number, since it uses as much as digits as its factorization.

18336826894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168413449.

The product of its digits is 11943936, while the sum is 58.

The spelling of 18336826894 in words is "eighteen billion, three hundred thirty-six million, eight hundred twenty-six thousand, eight hundred ninety-four".