12889869464 has 16 divisors (see below), whose sum is σ = 24186848400. Its totient is φ = 6440043232.

The previous prime is 12889869463. The next prime is 12889869469. The reversal of 12889869464 is 46496898821.

It is a super-2 number, since 2×12889869464² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12889869464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889869463) 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 3 ways as a sum of consecutive naturals, for example, 600227 + ... + 621330.

It is an arithmetic number, because the mean of its divisors is an integer number (1511678025).

Almost surely, 2^12889869464 is an apocalyptic number.

It is an amenable number.

12889869464 is a deficient number, since it is larger than the sum of its proper divisors (11296978936).

12889869464 is a wasteful number, since it uses less digits than its factorization.

12889869464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222882 (or 1222878 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 65.

The spelling of 12889869464 in words is "twelve billion, eight hundred eighty-nine million, eight hundred sixty-nine thousand, four hundred sixty-four".