519311105399 has 4 divisors (see below), whose sum is σ = 541889849136. Its totient is φ = 496732361664.

The previous prime is 519311105351. The next prime is 519311105441. The reversal of 519311105399 is 993501113915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-519311105399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (519311105899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11289371834 + ... + 11289371879.

It is an arithmetic number, because the mean of its divisors is an integer number (135472462284).

Almost surely, 2^519311105399 is an apocalyptic number.

519311105399 is a deficient number, since it is larger than the sum of its proper divisors (22578743737).

519311105399 is a wasteful number, since it uses less digits than its factorization.

519311105399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22578743736.

The product of its (nonzero) digits is 164025, while the sum is 47.

The spelling of 519311105399 in words is "five hundred nineteen billion, three hundred eleven million, one hundred five thousand, three hundred ninety-nine".