18355820314 has 32 divisors (see below), whose sum is σ = 31226549760. Its totient is φ = 8022369600.

The previous prime is 18355820291. The next prime is 18355820339. The reversal of 18355820314 is 41302855381.

It is a super-2 number, since 2×18355820314² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272784 + ... + 1287124.

It is an arithmetic number, because the mean of its divisors is an integer number (975829680).

Almost surely, 2^18355820314 is an apocalyptic number.

18355820314 is a deficient number, since it is larger than the sum of its proper divisors (12870729446).

18355820314 is a wasteful number, since it uses less digits than its factorization.

18355820314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16966.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 18355820314 in words is "eighteen billion, three hundred fifty-five million, eight hundred twenty thousand, three hundred fourteen".