18716963307 has 24 divisors (see below), whose sum is σ = 29143409616. Its totient is φ = 10653769728.

The previous prime is 18716963269. The next prime is 18716963311. The reversal of 18716963307 is 70336961781.

It is not a de Polignac number, because 18716963307 - 2¹¹ = 18716961259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18716963307.

It is not an unprimeable number, because it can be changed into a prime (18716963357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209938 + ... + 285495.

It is an arithmetic number, because the mean of its divisors is an integer number (1214308734).

Almost surely, 2^18716963307 is an apocalyptic number.

18716963307 is a deficient number, since it is larger than the sum of its proper divisors (10426446309).

18716963307 is a wasteful number, since it uses less digits than its factorization.

18716963307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495707 (or 495700 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 18716963307 in words is "eighteen billion, seven hundred sixteen million, nine hundred sixty-three thousand, three hundred seven".