12637581889 has 9 divisors (see below), whose sum is σ = 12808577313. Its totient is φ = 12468843972.

The previous prime is 12637581841. The next prime is 12637581911. The reversal of 12637581889 is 98818573621.

The square root of 12637581889 is 112417.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 12637581889 - 2¹⁵ = 12637549121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12637581589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8880232 + ... + 8881654.

It is an arithmetic number, because the mean of its divisors is an integer number (1423175257).

Almost surely, 2^12637581889 is an apocalyptic number.

12637581889 is the 112417-th square number.

12637581889 is the 56209-th centered octagonal number.

It is an amenable number.

12637581889 is a deficient number, since it is larger than the sum of its proper divisors (170995424).

12637581889 is an frugal number, since it uses more digits than its factorization.

12637581889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004 (or 1502 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The spelling of 12637581889 in words is "twelve billion, six hundred thirty-seven million, five hundred eighty-one thousand, eight hundred eighty-nine".