12985089887 has 8 divisors (see below), whose sum is σ = 16189203072. Its totient is φ = 10118251800.

The previous prime is 12985089857. The next prime is 12985089893. The reversal of 12985089887 is 78898058921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12985089887 - 2¹⁴ = 12985073503 is a prime.

It is a super-2 number, since 2×12985089887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985089857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84318689 + ... + 84318842.

It is an arithmetic number, because the mean of its divisors is an integer number (2023650384).

Almost surely, 2^12985089887 is an apocalyptic number.

12985089887 is a deficient number, since it is larger than the sum of its proper divisors (3204113185).

12985089887 is a wasteful number, since it uses less digits than its factorization.

12985089887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168637549.

The product of its (nonzero) digits is 23224320, while the sum is 65.

The spelling of 12985089887 in words is "twelve billion, nine hundred eighty-five million, eighty-nine thousand, eight hundred eighty-seven".