19845260294 has 16 divisors (see below), whose sum is σ = 29838255120. Its totient is φ = 9899202720.

The previous prime is 19845260273. The next prime is 19845260321. The reversal of 19845260294 is 49206254891.

It is a super-2 number, since 2×19845260294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672904 + ... + 1684724.

It is an arithmetic number, because the mean of its divisors is an integer number (1864890945).

Almost surely, 2^19845260294 is an apocalyptic number.

19845260294 is a deficient number, since it is larger than the sum of its proper divisors (9992994826).

19845260294 is a wasteful number, since it uses less digits than its factorization.

19845260294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13735.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 19845260294 in words is "nineteen billion, eight hundred forty-five million, two hundred sixty thousand, two hundred ninety-four".