194580831745 has 16 divisors (see below), whose sum is σ = 242560967040. Its totient is φ = 149728969600.

The previous prime is 194580831721. The next prime is 194580831751. The reversal of 194580831745 is 547138085491.

It is not a de Polignac number, because 194580831745 - 2²⁷ = 194446614017 is a prime.

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, 6669775 + ... + 6698884.

It is an arithmetic number, because the mean of its divisors is an integer number (15160060440).

Almost surely, 2^194580831745 is an apocalyptic number.

It is an amenable number.

194580831745 is a deficient number, since it is larger than the sum of its proper divisors (47980135295).

194580831745 is a wasteful number, since it uses less digits than its factorization.

194580831745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368776.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 194580831745 in words is "one hundred ninety-four billion, five hundred eighty million, eight hundred thirty-one thousand, seven hundred forty-five".