12686490974 has 16 divisors (see below), whose sum is σ = 19688659200. Its totient is φ = 6123665184.

The previous prime is 12686490967. The next prime is 12686490977. The reversal of 12686490974 is 47909468621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686490977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681539 + ... + 699905.

It is an arithmetic number, because the mean of its divisors is an integer number (1230541200).

Almost surely, 2^12686490974 is an apocalyptic number.

12686490974 is a deficient number, since it is larger than the sum of its proper divisors (7002168226).

12686490974 is a wasteful number, since it uses less digits than its factorization.

12686490974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30307.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 12686490974 in words is "twelve billion, six hundred eighty-six million, four hundred ninety thousand, nine hundred seventy-four".