18182106780 has 48 divisors (see below), whose sum is σ = 50962171680. Its totient is φ = 4843583488.

The previous prime is 18182106773. The next prime is 18182106821. The reversal of 18182106780 is 8760128181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96465 + ... + 213704.

It is an arithmetic number, because the mean of its divisors is an integer number (1061711910).

Almost surely, 2^18182106780 is an apocalyptic number.

18182106780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18182106780 is an abundant number, since it is smaller than the sum of its proper divisors (32780064900).

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

18182106780 is a wasteful number, since it uses less digits than its factorization.

18182106780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311158 (or 311156 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 42.

The spelling of 18182106780 in words is "eighteen billion, one hundred eighty-two million, one hundred six thousand, seven hundred eighty".