1806213983598 has 12 divisors (see below), whose sum is σ = 3913463631168. Its totient is φ = 602071327860.

The previous prime is 1806213983573. The next prime is 1806213983599. The reversal of 1806213983598 is 8953893126081.

1806213983598 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 2 + 1 + 39 + 8 + 3 + 598 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806213983599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50172610638 + ... + 50172610673.

It is an arithmetic number, because the mean of its divisors is an integer number (326121969264).

Almost surely, 2^{1806213983598} is an apocalyptic number.

1806213983598 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1806213983598 is an abundant number, since it is smaller than the sum of its proper divisors (2107249647570).

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

1806213983598 is a wasteful number, since it uses less digits than its factorization.

1806213983598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100345221319 (or 100345221316 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 1806213983598 in words is "one trillion, eight hundred six billion, two hundred thirteen million, nine hundred eighty-three thousand, five hundred ninety-eight".