12889163874 has 64 divisors (see below), whose sum is σ = 27607910400. Its totient is φ = 3999904128.

The previous prime is 12889163869. The next prime is 12889163879. The reversal of 12889163874 is 47836198821.

It is an interprime number because it is at equal distance from previous prime (12889163869) and next prime (12889163879).

It is a super-2 number, since 2×12889163874² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12889163879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1690579 + ... + 1698185.

It is an arithmetic number, because the mean of its divisors is an integer number (431373600).

Almost surely, 2^12889163874 is an apocalyptic number.

12889163874 is an abundant number, since it is smaller than the sum of its proper divisors (14718746526).

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

12889163874 is a wasteful number, since it uses less digits than its factorization.

12889163874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887.

The product of its digits is 4644864, while the sum is 57.

The spelling of 12889163874 in words is "twelve billion, eight hundred eighty-nine million, one hundred sixty-three thousand, eight hundred seventy-four".