18777103227 has 12 divisors (see below), whose sum is σ = 27302103504. Its totient is φ = 12435166800.

The previous prime is 18777103183. The next prime is 18777103283. The reversal of 18777103227 is 72230177781.

It is not a de Polignac number, because 18777103227 - 2¹⁹ = 18776578939 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18777105227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6907068 + ... + 6909785.

It is an arithmetic number, because the mean of its divisors is an integer number (2275175292).

Almost surely, 2^18777103227 is an apocalyptic number.

18777103227 is a deficient number, since it is larger than the sum of its proper divisors (8525000277).

18777103227 is a wasteful number, since it uses less digits than its factorization.

18777103227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13817010 (or 13817007 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 18777103227 in words is "eighteen billion, seven hundred seventy-seven million, one hundred three thousand, two hundred twenty-seven".