18876673056 has 24 divisors (see below), whose sum is σ = 49551267024. Its totient is φ = 6292224320.

The previous prime is 18876673043. The next prime is 18876673103. The reversal of 18876673056 is 65037667881.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 18876672987 and 18876673005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98315910 + ... + 98316101.

It is an arithmetic number, because the mean of its divisors is an integer number (2064636126).

Almost surely, 2^18876673056 is an apocalyptic number.

18876673056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18876673056 is an abundant number, since it is smaller than the sum of its proper divisors (30674593968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18876673056 is a wasteful number, since it uses less digits than its factorization.

18876673056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196632024 (or 196632016 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 18876673056 in words is "eighteen billion, eight hundred seventy-six million, six hundred seventy-three thousand, fifty-six".