18768663207 has 72 divisors (see below), whose sum is σ = 32775200640. Its totient is φ = 10307122560.

The previous prime is 18768663197. The next prime is 18768663209. The reversal of 18768663207 is 70236686781.

It is not a de Polignac number, because 18768663207 - 2⁶ = 18768663143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18768663209) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2848657 + ... + 2855237.

It is an arithmetic number, because the mean of its divisors is an integer number (455211120).

Almost surely, 2^18768663207 is an apocalyptic number.

18768663207 is a deficient number, since it is larger than the sum of its proper divisors (14006537433).

18768663207 is a wasteful number, since it uses less digits than its factorization.

18768663207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853 (or 6843 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 18768663207 in words is "eighteen billion, seven hundred sixty-eight million, six hundred sixty-three thousand, two hundred seven".