12897486385 has 16 divisors (see below), whose sum is σ = 17863114752. Its totient is φ = 8756424000.

The previous prime is 12897486377. The next prime is 12897486391. The reversal of 12897486385 is 58368479821.

It is not a de Polignac number, because 12897486385 - 2³ = 12897486377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820721 + ... + 1827790.

It is an arithmetic number, because the mean of its divisors is an integer number (1116444672).

Almost surely, 2^12897486385 is an apocalyptic number.

It is an amenable number.

12897486385 is a deficient number, since it is larger than the sum of its proper divisors (4965628367).

12897486385 is a wasteful number, since it uses less digits than its factorization.

12897486385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648624.

The product of its digits is 23224320, while the sum is 61.

The spelling of 12897486385 in words is "twelve billion, eight hundred ninety-seven million, four hundred eighty-six thousand, three hundred eighty-five".