518800618901 has 16 divisors (see below), whose sum is σ = 521999616000. Its totient is φ = 515614120560.

The previous prime is 518800618883. The next prime is 518800618909. The reversal of 518800618901 is 109816008815.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518800618901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518800618909) 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, 284585276 + ... + 284587098.

It is an arithmetic number, because the mean of its divisors is an integer number (32624976000).

Almost surely, 2^518800618901 is an apocalyptic number.

It is an amenable number.

518800618901 is a deficient number, since it is larger than the sum of its proper divisors (3198997099).

518800618901 is a wasteful number, since it uses less digits than its factorization.

518800618901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376.

The product of its (nonzero) digits is 138240, while the sum is 47.

The spelling of 518800618901 in words is "five hundred eighteen billion, eight hundred million, six hundred eighteen thousand, nine hundred one".