18179849492 has 12 divisors (see below), whose sum is σ = 36359699040. Its totient is φ = 7791364056.

The previous prime is 18179849461. The next prime is 18179849503. The reversal of 18179849492 is 29494897181.

18179849492 is an admirable number.

It is a congruent number.

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, 324640142 + ... + 324640197.

It is an arithmetic number, because the mean of its divisors is an integer number (3029974920).

Almost surely, 2^18179849492 is an apocalyptic number.

It is an amenable number.

18179849492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18179849492 is a wasteful number, since it uses less digits than its factorization.

18179849492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649280350 (or 649280348 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 62.

The spelling of 18179849492 in words is "eighteen billion, one hundred seventy-nine million, eight hundred forty-nine thousand, four hundred ninety-two".