19344844345 has 8 divisors (see below), whose sum is σ = 23453131464. Its totient is φ = 15316329984.

The previous prime is 19344844271. The next prime is 19344844399. The reversal of 19344844345 is 54344844391.

It can be written as a sum of positive squares in 4 ways, for example, as 80514729 + 19264329616 = 8973^2 + 138796^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19344844345 - 2⁷ = 19344844217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19942654 + ... + 19943623.

It is an arithmetic number, because the mean of its divisors is an integer number (2931641433).

Almost surely, 2^19344844345 is an apocalyptic number.

It is an amenable number.

19344844345 is a deficient number, since it is larger than the sum of its proper divisors (4108287119).

19344844345 is an equidigital number, since it uses as much as digits as its factorization.

19344844345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39886379.

The product of its digits is 3317760, while the sum is 49.

The spelling of 19344844345 in words is "nineteen billion, three hundred forty-four million, eight hundred forty-four thousand, three hundred forty-five".