18749177853 has 32 divisors (see below), whose sum is σ = 28780157952. Its totient is φ = 10635235200.

The previous prime is 18749177849. The next prime is 18749177879. The reversal of 18749177853 is 35877194781.

It is not a de Polignac number, because 18749177853 - 2² = 18749177849 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18749172853) 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 31 ways as a sum of consecutive naturals, for example, 3320913 + ... + 3326553.

It is an arithmetic number, because the mean of its divisors is an integer number (899379936).

Almost surely, 2^18749177853 is an apocalyptic number.

It is an amenable number.

18749177853 is a deficient number, since it is larger than the sum of its proper divisors (10030980099).

18749177853 is a wasteful number, since it uses less digits than its factorization.

18749177853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6785.

The product of its digits is 11854080, while the sum is 60.

It can be divided in two parts, 1874917 and 7853, that added together give a triangular number (1882770 = T₁₉₄₀).

The spelling of 18749177853 in words is "eighteen billion, seven hundred forty-nine million, one hundred seventy-seven thousand, eight hundred fifty-three".