19097806837 has 2 divisors, whose sum is σ = 19097806838. Its totient is φ = 19097806836.

The previous prime is 19097806801. The next prime is 19097806843. The reversal of 19097806837 is 73860879091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15278443236 + 3819363601 = 123606^2 + 61801^2 .

It is a cyclic number.

It is not a de Polignac number, because 19097806837 - 2¹⁹ = 19097282549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19097806877) 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, 9548903418 + 9548903419.

It is an arithmetic number, because the mean of its divisors is an integer number (9548903419).

Almost surely, 2^19097806837 is an apocalyptic number.

It is an amenable number.

19097806837 is a deficient number, since it is larger than the sum of its proper divisors (1).

19097806837 is an equidigital number, since it uses as much as digits as its factorization.

19097806837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 19097806837 in words is "nineteen billion, ninety-seven million, eight hundred six thousand, eight hundred thirty-seven".