12889857818 has 16 divisors (see below), whose sum is σ = 19761646464. Its totient is φ = 6302857440.

The previous prime is 12889857733. The next prime is 12889857833. The reversal of 12889857818 is 81875898821.

It is a super-2 number, since 2×12889857818² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68246 + ... + 174462.

It is an arithmetic number, because the mean of its divisors is an integer number (1235102904).

Almost surely, 2^12889857818 is an apocalyptic number.

12889857818 is a deficient number, since it is larger than the sum of its proper divisors (6871788646).

12889857818 is a wasteful number, since it uses less digits than its factorization.

12889857818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107557.

The product of its digits is 20643840, while the sum is 65.

The spelling of 12889857818 in words is "twelve billion, eight hundred eighty-nine million, eight hundred fifty-seven thousand, eight hundred eighteen".