19945407093 has 16 divisors (see below), whose sum is σ = 26652451200. Its totient is φ = 13267679040.

The previous prime is 19945407091. The next prime is 19945407133. The reversal of 19945407093 is 39070454991.

It is not a de Polignac number, because 19945407093 - 2¹ = 19945407091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19945407091) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5883643 + ... + 5887031.

It is an arithmetic number, because the mean of its divisors is an integer number (1665778200).

Almost surely, 2^19945407093 is an apocalyptic number.

It is an amenable number.

19945407093 is a deficient number, since it is larger than the sum of its proper divisors (6707044107).

19945407093 is a wasteful number, since it uses less digits than its factorization.

19945407093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 19945407093 in words is "nineteen billion, nine hundred forty-five million, four hundred seven thousand, ninety-three".