12907286866 has 16 divisors (see below), whose sum is σ = 20146975200. Its totient is φ = 6196716288.

The previous prime is 12907286827. The next prime is 12907286869. The reversal of 12907286866 is 66868270921.

It is a super-2 number, since 2×12907286866² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12907286869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266831 + ... + 1276978.

It is an arithmetic number, because the mean of its divisors is an integer number (1259185950).

Almost surely, 2^12907286866 is an apocalyptic number.

12907286866 is a deficient number, since it is larger than the sum of its proper divisors (7239688334).

12907286866 is a wasteful number, since it uses less digits than its factorization.

12907286866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543913.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 12907286866 in words is "twelve billion, nine hundred seven million, two hundred eighty-six thousand, eight hundred sixty-six".