12840177087 has 24 divisors (see below), whose sum is σ = 19359010944. Its totient is φ = 8185527504.

The previous prime is 12840177071. The next prime is 12840177109. The reversal of 12840177087 is 78077104821.

It is not a de Polignac number, because 12840177087 - 2⁴ = 12840177071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840177037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 926068 + ... + 939830.

It is an arithmetic number, because the mean of its divisors is an integer number (806625456).

Almost surely, 2^12840177087 is an apocalyptic number.

12840177087 is a deficient number, since it is larger than the sum of its proper divisors (6518833857).

12840177087 is a wasteful number, since it uses less digits than its factorization.

12840177087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18299 (or 18296 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 45.

The spelling of 12840177087 in words is "twelve billion, eight hundred forty million, one hundred seventy-seven thousand, eighty-seven".