19373936479 has 2 divisors, whose sum is σ = 19373936480. Its totient is φ = 19373936478.

The previous prime is 19373936467. The next prime is 19373936503. The reversal of 19373936479 is 97463937391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19373936479 - 2²¹ = 19371839327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19373936459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686968239 + 9686968240.

It is an arithmetic number, because the mean of its divisors is an integer number (9686968240).

Almost surely, 2^19373936479 is an apocalyptic number.

19373936479 is a deficient number, since it is larger than the sum of its proper divisors (1).

19373936479 is an equidigital number, since it uses as much as digits as its factorization.

19373936479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23147208, while the sum is 61.

The spelling of 19373936479 in words is "nineteen billion, three hundred seventy-three million, nine hundred thirty-six thousand, four hundred seventy-nine".