19465868419 has 2 divisors, whose sum is σ = 19465868420. Its totient is φ = 19465868418.

The previous prime is 19465868351. The next prime is 19465868437. The reversal of 19465868419 is 91486856491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19465868419 - 2¹⁵ = 19465835651 is a prime.

It is a super-2 number, since 2×19465868419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19465868459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9732934209 + 9732934210.

It is an arithmetic number, because the mean of its divisors is an integer number (9732934210).

Almost surely, 2^19465868419 is an apocalyptic number.

19465868419 is a deficient number, since it is larger than the sum of its proper divisors (1).

19465868419 is an equidigital number, since it uses as much as digits as its factorization.

19465868419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 61.

The spelling of 19465868419 in words is "nineteen billion, four hundred sixty-five million, eight hundred sixty-eight thousand, four hundred nineteen".