18420313354 has 8 divisors (see below), whose sum is σ = 27832152708. Its totient is φ = 9142929120.

The previous prime is 18420313337. The next prime is 18420313381. The reversal of 18420313354 is 45331302481.

It can be written as a sum of positive squares in 2 ways, for example, as 15768578329 + 2651735025 = 125573^2 + 51495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33613437 + ... + 33613984.

Almost surely, 2^18420313354 is an apocalyptic number.

18420313354 is a deficient number, since it is larger than the sum of its proper divisors (9411839354).

18420313354 is a wasteful number, since it uses less digits than its factorization.

18420313354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67227560.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 18420313354 in words is "eighteen billion, four hundred twenty million, three hundred thirteen thousand, three hundred fifty-four".