12728534254 has 8 divisors (see below), whose sum is σ = 19133686728. Its totient is φ = 6350638680.

The previous prime is 12728534239. The next prime is 12728534263. The reversal of 12728534254 is 45243582721.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12728534254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813057 + ... + 6814924.

It is an arithmetic number, because the mean of its divisors is an integer number (2391710841).

Almost surely, 2^12728534254 is an apocalyptic number.

12728534254 is a deficient number, since it is larger than the sum of its proper divisors (6405152474).

12728534254 is a wasteful number, since it uses less digits than its factorization.

12728534254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13628450.

The product of its digits is 537600, while the sum is 43.

The spelling of 12728534254 in words is "twelve billion, seven hundred twenty-eight million, five hundred thirty-four thousand, two hundred fifty-four".