18803766313 has 16 divisors (see below), whose sum is σ = 19414961280. Its totient is φ = 18201222144.

The previous prime is 18803766287. The next prime is 18803766349. The reversal of 18803766313 is 31366730881.

It is a cyclic number.

It is not a de Polignac number, because 18803766313 - 2²⁵ = 18770211881 is a prime.

It is a super-2 number, since 2×18803766313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18803766383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2228220 + ... + 2236642.

It is an arithmetic number, because the mean of its divisors is an integer number (1213435080).

Almost surely, 2^18803766313 is an apocalyptic number.

It is an amenable number.

18803766313 is a deficient number, since it is larger than the sum of its proper divisors (611194967).

18803766313 is a wasteful number, since it uses less digits than its factorization.

18803766313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 18803766313 in words is "eighteen billion, eight hundred three million, seven hundred sixty-six thousand, three hundred thirteen".