19344150517 has 16 divisors (see below), whose sum is σ = 20123132400. Its totient is φ = 18572843520.

The previous prime is 19344150479. The next prime is 19344150533. The reversal of 19344150517 is 71505144391.

It can be written as a sum of positive squares in 8 ways, for example, as 2978321476 + 16365829041 = 54574^2 + 127929^2 .

It is a de Polignac number, because none of the positive numbers 2^k-19344150517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19344150517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19344150557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8479417 + ... + 8481697.

It is an arithmetic number, because the mean of its divisors is an integer number (1257695775).

Almost surely, 2^19344150517 is an apocalyptic number.

It is an amenable number.

19344150517 is a deficient number, since it is larger than the sum of its proper divisors (778981883).

19344150517 is a wasteful number, since it uses less digits than its factorization.

19344150517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 19344150517 in words is "nineteen billion, three hundred forty-four million, one hundred fifty thousand, five hundred seventeen".