518340293756 has 6 divisors (see below), whose sum is σ = 907095514080. Its totient is φ = 259170146876.

The previous prime is 518340293743. The next prime is 518340293803. The reversal of 518340293756 is 657392043815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 518340293698 and 518340293707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64792536716 + ... + 64792536723.

It is an arithmetic number, because the mean of its divisors is an integer number (151182585680).

It is a 1-persistent number, because it is pandigital, but 2⋅518340293756 = 1036680587512 is not.

Almost surely, 2^518340293756 is an apocalyptic number.

It is an amenable number.

518340293756 is a deficient number, since it is larger than the sum of its proper divisors (388755220324).

518340293756 is a wasteful number, since it uses less digits than its factorization.

518340293756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129585073443 (or 129585073441 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 518340293756 in words is "five hundred eighteen billion, three hundred forty million, two hundred ninety-three thousand, seven hundred fifty-six".