519663420468 has 72 divisors (see below), whose sum is σ = 1359199994880. Its totient is φ = 167209842240.

The previous prime is 519663420431. The next prime is 519663420509. The reversal of 519663420468 is 864024366915.

519663420468 is a `hidden beast` number, since 51 + 96 + 6 + 3 + 42 + 0 + 468 = 666.

519663420468 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×519663420468² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4713453 + ... + 4822443.

Almost surely, 2^519663420468 is an apocalyptic number.

519663420468 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

519663420468 is an abundant number, since it is smaller than the sum of its proper divisors (839536574412).

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

519663420468 is a wasteful number, since it uses less digits than its factorization.

519663420468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113597 (or 113592 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 519663420468 in words is "five hundred nineteen billion, six hundred sixty-three million, four hundred twenty thousand, four hundred sixty-eight".