1812139683180 has 48 divisors (see below), whose sum is σ = 5081667458784. Its totient is φ = 482506168320.

The previous prime is 1812139683163. The next prime is 1812139683197. The reversal of 1812139683180 is 813869312181.

It is an interprime number because it is at equal distance from previous prime (1812139683163) and next prime (1812139683197).

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, 22806277 + ... + 22885596.

It is an arithmetic number, because the mean of its divisors is an integer number (105868072058).

Almost surely, 2^{1812139683180} is an apocalyptic number.

1812139683180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1812139683180 is an abundant number, since it is smaller than the sum of its proper divisors (3269527775604).

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

1812139683180 is a wasteful number, since it uses less digits than its factorization.

1812139683180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45692546 (or 45692544 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 1812139683180 in words is "one trillion, eight hundred twelve billion, one hundred thirty-nine million, six hundred eighty-three thousand, one hundred eighty".