12985520718 has 16 divisors (see below), whose sum is σ = 26336831616. Its totient is φ = 4267541880.

The previous prime is 12985520707. The next prime is 12985520761. The reversal of 12985520718 is 81702558921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15240796 + ... + 15241647.

It is an arithmetic number, because the mean of its divisors is an integer number (1646051976).

Almost surely, 2^12985520718 is an apocalyptic number.

12985520718 is an abundant number, since it is smaller than the sum of its proper divisors (13351310898).

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

12985520718 is a wasteful number, since it uses less digits than its factorization.

12985520718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30482519.

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 12985520718 in words is "twelve billion, nine hundred eighty-five million, five hundred twenty thousand, seven hundred eighteen".