518086745 has 8 divisors (see below), whose sum is σ = 678222720. Its totient is φ = 376790320.

The previous prime is 518086741. The next prime is 518086759. The reversal of 518086745 is 547680815.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 518086745 - 2² = 518086741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518086696 and 518086705.

It is not an unprimeable number, because it can be changed into a prime (518086741) 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, 4709825 + ... + 4709934.

It is an arithmetic number, because the mean of its divisors is an integer number (84777840).

Almost surely, 2^518086745 is an apocalyptic number.

518086745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

518086745 is a deficient number, since it is larger than the sum of its proper divisors (160135975).

518086745 is a wasteful number, since it uses less digits than its factorization.

518086745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419775.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 518086745 is about 22761.5189519505. The cubic root of 518086745 is about 803.1576994564.

The spelling of 518086745 in words is "five hundred eighteen million, eighty-six thousand, seven hundred forty-five".