18877081883 has 4 divisors (see below), whose sum is σ = 20593180248. Its totient is φ = 17160983520.

The previous prime is 18877081859. The next prime is 18877081931. The reversal of 18877081883 is 38818077881.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18877081883 - 2⁶ = 18877081819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18877081283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858049166 + ... + 858049187.

It is an arithmetic number, because the mean of its divisors is an integer number (5148295062).

Almost surely, 2^18877081883 is an apocalyptic number.

18877081883 is a deficient number, since it is larger than the sum of its proper divisors (1716098365).

18877081883 is a wasteful number, since it uses less digits than its factorization.

18877081883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716098364.

The product of its (nonzero) digits is 4816896, while the sum is 59.

The spelling of 18877081883 in words is "eighteen billion, eight hundred seventy-seven million, eighty-one thousand, eight hundred eighty-three".