12731022650 has 48 divisors (see below), whose sum is σ = 24473933568. Its totient is φ = 4922016000.

The previous prime is 12731022643. The next prime is 12731022653. The reversal of 12731022650 is 5622013721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12731022653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1360889 + ... + 1370211.

It is an arithmetic number, because the mean of its divisors is an integer number (509873616).

Almost surely, 2^12731022650 is an apocalyptic number.

12731022650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12731022650 is a deficient number, since it is larger than the sum of its proper divisors (11742910918).

12731022650 is a wasteful number, since it uses less digits than its factorization.

12731022650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247 (or 10242 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 12731022650 in words is "twelve billion, seven hundred thirty-one million, twenty-two thousand, six hundred fifty".