518720508041 has 16 divisors (see below), whose sum is σ = 552796773120. Its totient is φ = 485649003840.

The previous prime is 518720507983. The next prime is 518720508043. The reversal of 518720508041 is 140805027815.

It is a de Polignac number, because none of the positive numbers 2^k-518720508041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 518720508041.

It is not an unprimeable number, because it can be changed into a prime (518720508043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7820 + ... + 1018578.

It is an arithmetic number, because the mean of its divisors is an integer number (34549798320).

Almost surely, 2^518720508041 is an apocalyptic number.

It is an amenable number.

518720508041 is a deficient number, since it is larger than the sum of its proper divisors (34076265079).

518720508041 is a wasteful number, since it uses less digits than its factorization.

518720508041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011256.

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 518720508041 in words is "five hundred eighteen billion, seven hundred twenty million, five hundred eight thousand, forty-one".