518518052091312 has 160 divisors (see below), whose sum is σ = 1682266836364800. Its totient is φ = 136752013681920.

The previous prime is 518518052091311. The next prime is 518518052091317. The reversal of 518518052091312 is 213190250815815.

It is not an unprimeable number, because it can be changed into a prime (518518052091311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211095614 + ... + 1211523677.

It is an arithmetic number, because the mean of its divisors is an integer number (10514167727280).

Almost surely, 2^{518518052091312} is an apocalyptic number.

518518052091312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

518518052091312 is an abundant number, since it is smaller than the sum of its proper divisors (1163748784273488).

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

518518052091312 is a wasteful number, since it uses less digits than its factorization.

518518052091312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422619336 (or 2422619316 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 51.

The spelling of 518518052091312 in words is "five hundred eighteen trillion, five hundred eighteen billion, fifty-two million, ninety-one thousand, three hundred twelve".