19297788179291 has 2 divisors, whose sum is σ = 19297788179292. Its totient is φ = 19297788179290.

The previous prime is 19297788179251. The next prime is 19297788179303. The reversal of 19297788179291 is 19297188779291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19297788179291 - 2¹⁰ = 19297788178267 is a prime.

It is a super-2 number, since 2×19297788179291² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (19297788179251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9648894089645 + 9648894089646.

It is an arithmetic number, because the mean of its divisors is an integer number (9648894089646).

Almost surely, 2^{19297788179291} is an apocalyptic number.

19297788179291 is a deficient number, since it is larger than the sum of its proper divisors (1).

19297788179291 is an equidigital number, since it uses as much as digits as its factorization.

19297788179291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576108288, while the sum is 80.

The spelling of 19297788179291 in words is "nineteen trillion, two hundred ninety-seven billion, seven hundred eighty-eight million, one hundred seventy-nine thousand, two hundred ninety-one".