519474939499 has 4 divisors (see below), whose sum is σ = 519479311000. Its totient is φ = 519470568000.

The previous prime is 519474939457. The next prime is 519474939593. The reversal of 519474939499 is 994939474915.

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

It is a cyclic number.

It is not a de Polignac number, because 519474939499 - 2⁷ = 519474939371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (519474939419) 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, 2002374 + ... + 2246875.

It is an arithmetic number, because the mean of its divisors is an integer number (129869827750).

Almost surely, 2^519474939499 is an apocalyptic number.

519474939499 is a deficient number, since it is larger than the sum of its proper divisors (4371501).

519474939499 is a wasteful number, since it uses less digits than its factorization.

519474939499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371500.

The product of its digits is 396809280, while the sum is 73.

The spelling of 519474939499 in words is "five hundred nineteen billion, four hundred seventy-four million, nine hundred thirty-nine thousand, four hundred ninety-nine".