18876628133 has 8 divisors (see below), whose sum is σ = 20604217440. Its totient is φ = 17150960880.

The previous prime is 18876628087. The next prime is 18876628139. The reversal of 18876628133 is 33182667881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18876628133 - 2²⁰ = 18875579557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18876628139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459935 + ... + 499292.

It is an arithmetic number, because the mean of its divisors is an integer number (2575527180).

Almost surely, 2^18876628133 is an apocalyptic number.

It is an amenable number.

18876628133 is a deficient number, since it is larger than the sum of its proper divisors (1727589307).

18876628133 is a wasteful number, since it uses less digits than its factorization.

18876628133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961027.

The product of its digits is 2322432, while the sum is 53.

The spelling of 18876628133 in words is "eighteen billion, eight hundred seventy-six million, six hundred twenty-eight thousand, one hundred thirty-three".