12985842871518 has 32 divisors (see below), whose sum is σ = 28338613558272. Its totient is φ = 3934289251200.

The previous prime is 12985842871511. The next prime is 12985842871531. The reversal of 12985842871518 is 81517824858921.

It is a super-3 number, since 3×12985842871518³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985842871511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20044971 + ... + 20682662.

It is an arithmetic number, because the mean of its divisors is an integer number (885581673696).

Almost surely, 2^{12985842871518} is an apocalyptic number.

12985842871518 is an abundant number, since it is smaller than the sum of its proper divisors (15352770686754).

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

12985842871518 is a wasteful number, since it uses less digits than its factorization.

12985842871518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40732480.

The product of its digits is 103219200, while the sum is 69.

The spelling of 12985842871518 in words is "twelve trillion, nine hundred eighty-five billion, eight hundred forty-two million, eight hundred seventy-one thousand, five hundred eighteen".