518105680 has 40 divisors (see below), whose sum is σ = 1267999200. Its totient is φ = 196334208.

The previous prime is 518105639. The next prime is 518105683. The reversal of 518105680 is 86501815.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518105683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168910 + ... + 171949.

It is an arithmetic number, because the mean of its divisors is an integer number (31699980).

Almost surely, 2^518105680 is an apocalyptic number.

It is an amenable number.

518105680 is an abundant number, since it is smaller than the sum of its proper divisors (749893520).

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

518105680 is a wasteful number, since it uses less digits than its factorization.

518105680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340891 (or 340885 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 518105680 is about 22761.9348913927. The cubic root of 518105680 is about 803.1674839220.

The spelling of 518105680 in words is "five hundred eighteen million, one hundred five thousand, six hundred eighty".