2180809923594 has 64 divisors (see below), whose sum is σ = 4695465220992. Its totient is φ = 672734361600.

The previous prime is 2180809923517. The next prime is 2180809923667. The reversal of 2180809923594 is 4953299080812.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19025734 + ... + 19140014.

It is an arithmetic number, because the mean of its divisors is an integer number (73366644078).

Almost surely, 2^{2180809923594} is an apocalyptic number.

2180809923594 is an abundant number, since it is smaller than the sum of its proper divisors (2514655297398).

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

2180809923594 is a wasteful number, since it uses less digits than its factorization.

2180809923594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117431.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 2180809923594 in words is "two trillion, one hundred eighty billion, eight hundred nine million, nine hundred twenty-three thousand, five hundred ninety-four".