518387153240 has 128 divisors (see below), whose sum is σ = 1345916736000. Its totient is φ = 177838341120.

The previous prime is 518387153197. The next prime is 518387153257. The reversal of 518387153240 is 42351783815.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 387911 + ... + 1089609.

It is an arithmetic number, because the mean of its divisors is an integer number (10514974500).

Almost surely, 2^518387153240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518387153240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672958368000).

518387153240 is an abundant number, since it is smaller than the sum of its proper divisors (827529582760).

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

518387153240 is a wasteful number, since it uses less digits than its factorization.

518387153240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701817 (or 701813 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 518387153240 in words is "five hundred eighteen billion, three hundred eighty-seven million, one hundred fifty-three thousand, two hundred forty".