19343412769 has 4 divisors (see below), whose sum is σ = 19344021696. Its totient is φ = 19342803844.

The previous prime is 19343412749. The next prime is 19343412853. The reversal of 19343412769 is 96721434391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19343412769 - 2¹⁷ = 19343281697 is a prime.

It is a super-2 number, since 2×19343412769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19343412749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254029 + ... + 321274.

It is an arithmetic number, because the mean of its divisors is an integer number (4836005424).

Almost surely, 2^19343412769 is an apocalyptic number.

It is an amenable number.

19343412769 is a deficient number, since it is larger than the sum of its proper divisors (608927).

19343412769 is an equidigital number, since it uses as much as digits as its factorization.

19343412769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608926.

The product of its digits is 979776, while the sum is 49.

The spelling of 19343412769 in words is "nineteen billion, three hundred forty-three million, four hundred twelve thousand, seven hundred sixty-nine".