19136797129 has 2 divisors, whose sum is σ = 19136797130. Its totient is φ = 19136797128.

The previous prime is 19136797123. The next prime is 19136797171. The reversal of 19136797129 is 92179763191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18399566025 + 737231104 = 135645^2 + 27152^2 .

It is an emirp because it is prime and its reverse (92179763191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19136797129 - 2²³ = 19128408521 is a prime.

It is a super-3 number, since 3×19136797129³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19136797129.

It is not a weakly prime, because it can be changed into another prime (19136797123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9568398564 + 9568398565.

It is an arithmetic number, because the mean of its divisors is an integer number (9568398565).

Almost surely, 2^19136797129 is an apocalyptic number.

It is an amenable number.

19136797129 is a deficient number, since it is larger than the sum of its proper divisors (1).

19136797129 is an equidigital number, since it uses as much as digits as its factorization.

19136797129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 55.

The spelling of 19136797129 in words is "nineteen billion, one hundred thirty-six million, seven hundred ninety-seven thousand, one hundred twenty-nine".