518107412 has 6 divisors (see below), whose sum is σ = 906687978. Its totient is φ = 259053704.

The previous prime is 518107397. The next prime is 518107441. The reversal of 518107412 is 214701815.

It can be written as a sum of positive squares in only one way, i.e., 437897476 + 80209936 = 20926^2 + 8956^2 .

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, 64763423 + ... + 64763430.

It is an arithmetic number, because the mean of its divisors is an integer number (151114663).

Almost surely, 2^518107412 is an apocalyptic number.

It is an amenable number.

518107412 is a deficient number, since it is larger than the sum of its proper divisors (388580566).

518107412 is a wasteful number, since it uses less digits than its factorization.

518107412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129526857 (or 129526855 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 518107412 is about 22761.9729373356. The cubic root of 518107412 is about 803.1683789032.

The spelling of 518107412 in words is "five hundred eighteen million, one hundred seven thousand, four hundred twelve".