19425873799 has 2 divisors, whose sum is σ = 19425873800. Its totient is φ = 19425873798.

The previous prime is 19425873773. The next prime is 19425873827. The reversal of 19425873799 is 99737852491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19425873799 - 2⁹ = 19425873287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19425873799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19425873739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712936899 + 9712936900.

It is an arithmetic number, because the mean of its divisors is an integer number (9712936900).

Almost surely, 2^19425873799 is an apocalyptic number.

19425873799 is a deficient number, since it is larger than the sum of its proper divisors (1).

19425873799 is an equidigital number, since it uses as much as digits as its factorization.

19425873799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 64.

The spelling of 19425873799 in words is "nineteen billion, four hundred twenty-five million, eight hundred seventy-three thousand, seven hundred ninety-nine".