19081379573 has 2 divisors, whose sum is σ = 19081379574. Its totient is φ = 19081379572.

The previous prime is 19081379549. The next prime is 19081379579. The reversal of 19081379573 is 37597318091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16161274129 + 2920105444 = 127127^2 + 54038^2 .

It is an emirp because it is prime and its reverse (37597318091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19081379573 - 2⁶ = 19081379509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19081379579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9540689786 + 9540689787.

It is an arithmetic number, because the mean of its divisors is an integer number (9540689787).

Almost surely, 2^19081379573 is an apocalyptic number.

It is an amenable number.

19081379573 is a deficient number, since it is larger than the sum of its proper divisors (1).

19081379573 is an equidigital number, since it uses as much as digits as its factorization.

19081379573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The spelling of 19081379573 in words is "nineteen billion, eighty-one million, three hundred seventy-nine thousand, five hundred seventy-three".