12985516876 has 48 divisors (see below), whose sum is σ = 24019329600. Its totient is φ = 6134059008.

The previous prime is 12985516799. The next prime is 12985516879. The reversal of 12985516876 is 67861558921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 12985516876.

It is not an unprimeable number, because it can be changed into a prime (12985516879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994945 + ... + 1007911.

It is an arithmetic number, because the mean of its divisors is an integer number (500402700).

Almost surely, 2^12985516876 is an apocalyptic number.

It is an amenable number.

12985516876 is a deficient number, since it is larger than the sum of its proper divisors (11033812724).

12985516876 is a wasteful number, since it uses less digits than its factorization.

12985516876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13186 (or 13184 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 58.

The spelling of 12985516876 in words is "twelve billion, nine hundred eighty-five million, five hundred sixteen thousand, eight hundred seventy-six".