12889859512020 has 24 divisors (see below), whose sum is σ = 36091606633824. Its totient is φ = 3437295869856.

The previous prime is 12889859512001. The next prime is 12889859512039. The reversal of 12889859512020 is 2021595898821.

It is an interprime number because it is at equal distance from previous prime (12889859512001) and next prime (12889859512039).

It is a super-2 number, since 2×12889859512020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 214830991867 = 12889859512020 / (1 + 2 + 8 + 8 + 9 + 8 + 5 + 9 + 5 + 1 + 2 + 0 + 2 + 0).

It is a congruent number.

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, 107415495874 + ... + 107415495993.

It is an arithmetic number, because the mean of its divisors is an integer number (1503816943076).

Almost surely, 2^{12889859512020} is an apocalyptic number.

12889859512020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12889859512020 is an abundant number, since it is smaller than the sum of its proper divisors (23201747121804).

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

12889859512020 is a wasteful number, since it uses less digits than its factorization.

12889859512020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214830991879 (or 214830991877 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 60.

The spelling of 12889859512020 in words is "twelve trillion, eight hundred eighty-nine billion, eight hundred fifty-nine million, five hundred twelve thousand, twenty".