19179129419 has 2 divisors, whose sum is σ = 19179129420. Its totient is φ = 19179129418.

The previous prime is 19179129407. The next prime is 19179129427. The reversal of 19179129419 is 91492197191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19179129419 - 2¹² = 19179125323 is a prime.

It is a super-2 number, since 2×19179129419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19179122419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9589564709 + 9589564710.

It is an arithmetic number, because the mean of its divisors is an integer number (9589564710).

Almost surely, 2^19179129419 is an apocalyptic number.

19179129419 is a deficient number, since it is larger than the sum of its proper divisors (1).

19179129419 is an equidigital number, since it uses as much as digits as its factorization.

19179129419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 53.

The spelling of 19179129419 in words is "nineteen billion, one hundred seventy-nine million, one hundred twenty-nine thousand, four hundred nineteen".