19450791873399 has 16 divisors (see below), whose sum is σ = 27978053575392. Its totient is φ = 11974146382848.

The previous prime is 19450791873353. The next prime is 19450791873431. The reversal of 19450791873399 is 99337819705491.

It is not a de Polignac number, because 19450791873399 - 2⁸ = 19450791873143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19450791873399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19450791973399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597998014 + ... + 3598003419.

It is an arithmetic number, because the mean of its divisors is an integer number (1748628348462).

Almost surely, 2^{19450791873399} is an apocalyptic number.

19450791873399 is a deficient number, since it is larger than the sum of its proper divisors (8527261701993).

19450791873399 is a wasteful number, since it uses less digits than its factorization.

19450791873399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196001506.

The product of its (nonzero) digits is 462944160, while the sum is 75.

The spelling of 19450791873399 in words is "nineteen trillion, four hundred fifty billion, seven hundred ninety-one million, eight hundred seventy-three thousand, three hundred ninety-nine".