19025329499 has 16 divisors (see below), whose sum is σ = 20985744384. Its totient is φ = 17103804000.

The previous prime is 19025329481. The next prime is 19025329501. The reversal of 19025329499 is 99492352091.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19025329499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19025329499.

It is not an unprimeable number, because it can be changed into a prime (19025329199) 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, 948872 + ... + 968714.

It is an arithmetic number, because the mean of its divisors is an integer number (1311609024).

Almost surely, 2^19025329499 is an apocalyptic number.

19025329499 is a deficient number, since it is larger than the sum of its proper divisors (1960414885).

19025329499 is a wasteful number, since it uses less digits than its factorization.

19025329499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20818.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 19025329499 in words is "nineteen billion, twenty-five million, three hundred twenty-nine thousand, four hundred ninety-nine".