12734459646 has 16 divisors (see below), whose sum is σ = 25562903808. Its totient is φ = 4229155800.

The previous prime is 12734459599. The next prime is 12734459653. The reversal of 12734459646 is 64695443721.

It is a congruent 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, 3914260 + ... + 3917511.

It is an arithmetic number, because the mean of its divisors is an integer number (1597681488).

Almost surely, 2^12734459646 is an apocalyptic number.

12734459646 is an abundant number, since it is smaller than the sum of its proper divisors (12828444162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12734459646 is a wasteful number, since it uses less digits than its factorization.

12734459646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832047.

The product of its digits is 4354560, while the sum is 51.

The spelling of 12734459646 in words is "twelve billion, seven hundred thirty-four million, four hundred fifty-nine thousand, six hundred forty-six".