19345764309 has 8 divisors (see below), whose sum is σ = 26683812960. Its totient is φ = 12452445936.

The previous prime is 19345764281. The next prime is 19345764359. The reversal of 19345764309 is 90346754391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19345764309 - 2⁷ = 19345764181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19345764359) 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 in 7 ways as a sum of consecutive naturals, for example, 111182467 + ... + 111182640.

It is an arithmetic number, because the mean of its divisors is an integer number (3335476620).

Almost surely, 2^19345764309 is an apocalyptic number.

It is an amenable number.

19345764309 is a deficient number, since it is larger than the sum of its proper divisors (7338048651).

19345764309 is a wasteful number, since it uses less digits than its factorization.

19345764309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222365139.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 19345764309 in words is "nineteen billion, three hundred forty-five million, seven hundred sixty-four thousand, three hundred nine".