12710728326 has 32 divisors (see below), whose sum is σ = 27243687168. Its totient is φ = 3943162080.

The previous prime is 12710728309. The next prime is 12710728367. The reversal of 12710728326 is 62382701721.

It is a super-2 number, since 2×12710728326² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239580 + ... + 1249791.

It is an arithmetic number, because the mean of its divisors is an integer number (851365224).

Almost surely, 2^12710728326 is an apocalyptic number.

12710728326 is an abundant number, since it is smaller than the sum of its proper divisors (14532958842).

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

12710728326 is a wasteful number, since it uses less digits than its factorization.

12710728326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489436.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 12710728326 in words is "twelve billion, seven hundred ten million, seven hundred twenty-eight thousand, three hundred twenty-six".