518680108380081 has 16 divisors (see below), whose sum is σ = 736299874372608. Its totient is φ = 323648296416000.

The previous prime is 518680108380059. The next prime is 518680108380113. The reversal of 518680108380081 is 180083801086815.

It is not a de Polignac number, because 518680108380081 - 2³⁷ = 518542669426609 is a prime.

It is a super-2 number, since 2×518680108380081² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (518680108380041) 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, 28094460945 + ... + 28094479406.

It is an arithmetic number, because the mean of its divisors is an integer number (46018742148288).

Almost surely, 2^{518680108380081} is an apocalyptic number.

518680108380081 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

518680108380081 is a deficient number, since it is larger than the sum of its proper divisors (217619765992527).

518680108380081 is a wasteful number, since it uses less digits than its factorization.

518680108380081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56188940552.

The product of its (nonzero) digits is 2949120, while the sum is 57.

The spelling of 518680108380081 in words is "five hundred eighteen trillion, six hundred eighty billion, one hundred eight million, three hundred eighty thousand, eighty-one".