18877035919 has 6 divisors (see below), whose sum is σ = 21959001024. Its totient is φ = 16180316460.

The previous prime is 18877035913. The next prime is 18877035949. The reversal of 18877035919 is 91953077881.

It is not a de Polignac number, because 18877035919 - 2³ = 18877035911 is a prime.

It is a super-2 number, since 2×18877035919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18877035911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192622767 + ... + 192622864.

It is an arithmetic number, because the mean of its divisors is an integer number (3659833504).

Almost surely, 2^18877035919 is an apocalyptic number.

18877035919 is a deficient number, since it is larger than the sum of its proper divisors (3081965105).

18877035919 is an equidigital number, since it uses as much as digits as its factorization.

18877035919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385245645 (or 385245638 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 58.

The spelling of 18877035919 in words is "eighteen billion, eight hundred seventy-seven million, thirty-five thousand, nine hundred nineteen".