18420313362 has 16 divisors (see below), whose sum is σ = 40189774752. Its totient is φ = 5581913120.

The previous prime is 18420313337. The next prime is 18420313381. The reversal of 18420313362 is 26331302481.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 139547763 + ... + 139547894.

It is an arithmetic number, because the mean of its divisors is an integer number (2511860922).

Almost surely, 2^18420313362 is an apocalyptic number.

18420313362 is an abundant number, since it is smaller than the sum of its proper divisors (21769461390).

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

18420313362 is a wasteful number, since it uses less digits than its factorization.

18420313362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279095673.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 18420313362 in words is "eighteen billion, four hundred twenty million, three hundred thirteen thousand, three hundred sixty-two".