19696157263 has 2 divisors, whose sum is σ = 19696157264. Its totient is φ = 19696157262.

The previous prime is 19696157251. The next prime is 19696157291. The reversal of 19696157263 is 36275169691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19696157263 - 2⁵ = 19696157231 is a prime.

It is a super-2 number, since 2×19696157263² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19696157293) 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, 9848078631 + 9848078632.

It is an arithmetic number, because the mean of its divisors is an integer number (9848078632).

Almost surely, 2^19696157263 is an apocalyptic number.

19696157263 is a deficient number, since it is larger than the sum of its proper divisors (1).

19696157263 is an equidigital number, since it uses as much as digits as its factorization.

19696157263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 55.

The spelling of 19696157263 in words is "nineteen billion, six hundred ninety-six million, one hundred fifty-seven thousand, two hundred sixty-three".