519986694489 has 8 divisors (see below), whose sum is σ = 734098862880. Its totient is φ = 326266161216.

The previous prime is 519986694371. The next prime is 519986694541. The reversal of 519986694489 is 984496689915.

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

It is not a de Polignac number, because 519986694489 - 2¹⁷ = 519986563417 is a prime.

It is a super-2 number, since 2×519986694489² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (519986694089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5097908719 + ... + 5097908820.

It is an arithmetic number, because the mean of its divisors is an integer number (91762357860).

Almost surely, 2^519986694489 is an apocalyptic number.

It is an amenable number.

519986694489 is a deficient number, since it is larger than the sum of its proper divisors (214112168391).

519986694489 is a wasteful number, since it uses less digits than its factorization.

519986694489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10195817559.

The product of its digits is 1209323520, while the sum is 78.

The spelling of 519986694489 in words is "five hundred nineteen billion, nine hundred eighty-six million, six hundred ninety-four thousand, four hundred eighty-nine".