12559146890 has 16 divisors (see below), whose sum is σ = 22860471240. Its totient is φ = 4967212800.

The previous prime is 12559146881. The next prime is 12559146893. The reversal of 12559146890 is 9864195521.

It can be written as a sum of positive squares in 4 ways, for example, as 6504906409 + 6054240481 = 80653^2 + 77809^2 .

It is not an unprimeable number, because it can be changed into a prime (12559146893) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7054811 + ... + 7056590.

Almost surely, 2^12559146890 is an apocalyptic number.

12559146890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12559146890 is a deficient number, since it is larger than the sum of its proper divisors (10301324350).

12559146890 is a wasteful number, since it uses less digits than its factorization.

12559146890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14111497.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 12559146890 in words is "twelve billion, five hundred fifty-nine million, one hundred forty-six thousand, eight hundred ninety".