518400040039 has 16 divisors (see below), whose sum is σ = 602424164160. Its totient is φ = 436922830080.

The previous prime is 518400040019. The next prime is 518400040057. The reversal of 518400040039 is 930040004815.

It is a cyclic number.

It is not a de Polignac number, because 518400040039 - 2⁹ = 518400039527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518400039986 and 518400040013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518400040019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185864 + ... + 2411389.

It is an arithmetic number, because the mean of its divisors is an integer number (37651510260).

Almost surely, 2^518400040039 is an apocalyptic number.

518400040039 is a deficient number, since it is larger than the sum of its proper divisors (84024124121).

518400040039 is a wasteful number, since it uses less digits than its factorization.

518400040039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597530.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 518400040039 in words is "five hundred eighteen billion, four hundred million, forty thousand, thirty-nine".