519794770068 has 216 divisors, whose sum is σ = 1578942054144. Its totient is φ = 143613388800.

The previous prime is 519794770057. The next prime is 519794770069. The reversal of 519794770068 is 860077497915.

519794770068 is a `hidden beast` number, since 519 + 7 + 9 + 47 + 70 + 0 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 519794769987 and 519794770014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (519794770069) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 95530228 + ... + 95535668.

Almost surely, 2^519794770068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 519794770068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789471027072).

519794770068 is an abundant number, since it is smaller than the sum of its proper divisors (1059147284076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

519794770068 is a wasteful number, since it uses less digits than its factorization.

519794770068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7243 (or 7231 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

The spelling of 519794770068 in words is "five hundred nineteen billion, seven hundred ninety-four million, seven hundred seventy thousand, sixty-eight".