518353850020 has 24 divisors (see below), whose sum is σ = 1145834827200. Its totient is φ = 196428827232.

The previous prime is 518353849973. The next prime is 518353850023. The reversal of 518353850020 is 20058353815.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (518353850023) 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, 682044160 + ... + 682044919.

It is an arithmetic number, because the mean of its divisors is an integer number (47743117800).

Almost surely, 2^518353850020 is an apocalyptic number.

It is an amenable number.

518353850020 is an abundant number, since it is smaller than the sum of its proper divisors (627480977180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518353850020 is a wasteful number, since it uses less digits than its factorization.

518353850020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364089107 (or 1364089105 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 518353850020 in words is "five hundred eighteen billion, three hundred fifty-three million, eight hundred fifty thousand, twenty".