12485127785 has 16 divisors (see below), whose sum is σ = 16159773504. Its totient is φ = 9205417152.

The previous prime is 12485127673. The next prime is 12485127793. The reversal of 12485127785 is 58772158421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12485127785 - 2¹² = 12485123689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107567 + ... + 191156.

It is an arithmetic number, because the mean of its divisors is an integer number (1009985844).

Almost surely, 2^12485127785 is an apocalyptic number.

It is an amenable number.

12485127785 is a deficient number, since it is larger than the sum of its proper divisors (3674645719).

12485127785 is a wasteful number, since it uses less digits than its factorization.

12485127785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299384.

The product of its digits is 1254400, while the sum is 50.

The spelling of 12485127785 in words is "twelve billion, four hundred eighty-five million, one hundred twenty-seven thousand, seven hundred eighty-five".