19363497137 has 2 divisors, whose sum is σ = 19363497138. Its totient is φ = 19363497136.

The previous prime is 19363497091. The next prime is 19363497173. The reversal of 19363497137 is 73179436391.

Together with next prime (19363497173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13531272976 + 5832224161 = 116324^2 + 76369^2 .

It is a cyclic number.

It is not a de Polignac number, because 19363497137 - 2¹⁸ = 19363234993 is a prime.

It is not a weakly prime, because it can be changed into another prime (19363497337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9681748568 + 9681748569.

It is an arithmetic number, because the mean of its divisors is an integer number (9681748569).

Almost surely, 2^19363497137 is an apocalyptic number.

It is an amenable number.

19363497137 is a deficient number, since it is larger than the sum of its proper divisors (1).

19363497137 is an equidigital number, since it uses as much as digits as its factorization.

19363497137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 53.

The spelling of 19363497137 in words is "nineteen billion, three hundred sixty-three million, four hundred ninety-seven thousand, one hundred thirty-seven".