12728645702 has 8 divisors (see below), whose sum is σ = 19131855912. Its totient is φ = 6351360400.

The previous prime is 12728645701. The next prime is 12728645753. The reversal of 12728645702 is 20754682721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728645701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6479999 + ... + 6481962.

It is an arithmetic number, because the mean of its divisors is an integer number (2391481989).

Almost surely, 2^12728645702 is an apocalyptic number.

12728645702 is a deficient number, since it is larger than the sum of its proper divisors (6403210210).

12728645702 is a wasteful number, since it uses less digits than its factorization.

12728645702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962454.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 12728645702 in words is "twelve billion, seven hundred twenty-eight million, six hundred forty-five thousand, seven hundred two".