12840712250 has 16 divisors (see below), whose sum is σ = 24037813800. Its totient is φ = 5136284800.

The previous prime is 12840712243. The next prime is 12840712301. The reversal of 12840712250 is 5221704821.

It can be written as a sum of positive squares in 4 ways, for example, as 763361641 + 12077350609 = 27629^2 + 109897^2 .

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, 25681175 + ... + 25681674.

Almost surely, 2^12840712250 is an apocalyptic number.

12840712250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12840712250 is a deficient number, since it is larger than the sum of its proper divisors (11197101550).

12840712250 is an equidigital number, since it uses as much as digits as its factorization.

12840712250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51362866 (or 51362856 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 12840712250 in words is "twelve billion, eight hundred forty million, seven hundred twelve thousand, two hundred fifty".