519479266849 has 4 divisors (see below), whose sum is σ = 519481004436. Its totient is φ = 519477529264.

The previous prime is 519479266841. The next prime is 519479266871. The reversal of 519479266849 is 948662974915.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 298045024225 + 221434242624 = 545935^2 + 470568^2 .

It is a cyclic number.

It is not a de Polignac number, because 519479266849 - 2³ = 519479266841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (519479266841) 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, 293254 + ... + 1060639.

It is an arithmetic number, because the mean of its divisors is an integer number (129870251109).

Almost surely, 2^519479266849 is an apocalyptic number.

It is an amenable number.

519479266849 is a deficient number, since it is larger than the sum of its proper divisors (1737587).

519479266849 is a wasteful number, since it uses less digits than its factorization.

519479266849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737586.

The product of its digits is 235146240, while the sum is 70.

The spelling of 519479266849 in words is "five hundred nineteen billion, four hundred seventy-nine million, two hundred sixty-six thousand, eight hundred forty-nine".