12559757881 has 4 divisors (see below), whose sum is σ = 13701554064. Its totient is φ = 11417961700.

The previous prime is 12559757869. The next prime is 12559757897. The reversal of 12559757881 is 18875795521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12559757881 - 2²¹ = 12557660729 is a prime.

It is a super-2 number, since 2×12559757881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12559757801) 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 3 ways as a sum of consecutive naturals, for example, 570898075 + ... + 570898096.

It is an arithmetic number, because the mean of its divisors is an integer number (3425388516).

Almost surely, 2^12559757881 is an apocalyptic number.

12559757881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12559757881 is a deficient number, since it is larger than the sum of its proper divisors (1141796183).

12559757881 is a wasteful number, since it uses less digits than its factorization.

12559757881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141796182.

The product of its digits is 7056000, while the sum is 58.

The spelling of 12559757881 in words is "twelve billion, five hundred fifty-nine million, seven hundred fifty-seven thousand, eight hundred eighty-one".