19344844347 has 32 divisors (see below), whose sum is σ = 28533780480. Its totient is φ = 11615218560.

The previous prime is 19344844271. The next prime is 19344844399. The reversal of 19344844347 is 74344844391.

It is a happy number.

It is not a de Polignac number, because 19344844347 - 2¹⁴ = 19344827963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19344844347.

It is not an unprimeable number, because it can be changed into a prime (19344844247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43072 + ... + 201357.

It is an arithmetic number, because the mean of its divisors is an integer number (891680640).

Almost surely, 2^19344844347 is an apocalyptic number.

19344844347 is a deficient number, since it is larger than the sum of its proper divisors (9188936133).

19344844347 is a wasteful number, since it uses less digits than its factorization.

19344844347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244523.

The product of its digits is 4644864, while the sum is 51.

The spelling of 19344844347 in words is "nineteen billion, three hundred forty-four million, eight hundred forty-four thousand, three hundred forty-seven".