18000313368 has 32 divisors (see below), whose sum is σ = 45506415600. Its totient is φ = 5932686848.

The previous prime is 18000313367. The next prime is 18000313381. The reversal of 18000313368 is 86331300081.

It is a happy number.

It is a super-2 number, since 2×18000313368² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000313367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211421 + ... + 4215692.

Almost surely, 2^18000313368 is an apocalyptic number.

It is an amenable number.

18000313368 is an abundant number, since it is smaller than the sum of its proper divisors (27506102232).

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

18000313368 is a wasteful number, since it uses less digits than its factorization.

18000313368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427211 (or 8427207 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 18000313368 in words is "eighteen billion, three hundred thirteen thousand, three hundred sixty-eight".