519699590468 has 6 divisors (see below), whose sum is σ = 909474283326. Its totient is φ = 259849795232.

The previous prime is 519699590419. The next prime is 519699590483. The reversal of 519699590468 is 864095996915.

It can be written as a sum of positive squares in only one way, i.e., 519347952964 + 351637504 = 720658^2 + 18752^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64962448805 + ... + 64962448812.

It is an arithmetic number, because the mean of its divisors is an integer number (151579047221).

Almost surely, 2^519699590468 is an apocalyptic number.

It is an amenable number.

519699590468 is a deficient number, since it is larger than the sum of its proper divisors (389774692858).

519699590468 is a wasteful number, since it uses less digits than its factorization.

519699590468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129924897621 (or 129924897619 counting only the distinct ones).

The product of its (nonzero) digits is 188956800, while the sum is 71.

The spelling of 519699590468 in words is "five hundred nineteen billion, six hundred ninety-nine million, five hundred ninety thousand, four hundred sixty-eight".