518649628383 has 12 divisors (see below), whose sum is σ = 749725143648. Its totient is φ = 345505848480.

The previous prime is 518649628381. The next prime is 518649628391. The reversal of 518649628383 is 383826946815.

It is a happy number.

518649628383 is a `hidden beast` number, since 518 + 6 + 4 + 96 + 28 + 3 + 8 + 3 = 666.

It is not a de Polignac number, because 518649628383 - 2¹ = 518649628381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 518649628383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518649628381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21701598 + ... + 21725483.

It is an arithmetic number, because the mean of its divisors is an integer number (62477095304).

Almost surely, 2^518649628383 is an apocalyptic number.

518649628383 is a deficient number, since it is larger than the sum of its proper divisors (231075515265).

518649628383 is a wasteful number, since it uses less digits than its factorization.

518649628383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43428414 (or 43428411 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 518649628383 in words is "five hundred eighteen billion, six hundred forty-nine million, six hundred twenty-eight thousand, three hundred eighty-three".