12641786210 has 16 divisors (see below), whose sum is σ = 22963980600. Its totient is φ = 5010322176.

The previous prime is 12641786207. The next prime is 12641786233. The reversal of 12641786210 is 1268714621.

It can be written as a sum of positive squares in 4 ways, for example, as 12276861601 + 364924609 = 110801^2 + 19103^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5797895 + ... + 5800074.

Almost surely, 2^12641786210 is an apocalyptic number.

12641786210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12641786210 is a deficient number, since it is larger than the sum of its proper divisors (10322194390).

12641786210 is a wasteful number, since it uses less digits than its factorization.

12641786210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11598085.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 12641786210 in words is "twelve billion, six hundred forty-one million, seven hundred eighty-six thousand, two hundred ten".