28647260726 has 24 divisors (see below), whose sum is σ = 50548208760. Its totient is φ = 12139445472.

The previous prime is 28647260639. The next prime is 28647260749. The reversal of 28647260726 is 62706274682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1633520 + ... + 1650963.

It is an arithmetic number, because the mean of its divisors is an integer number (2106175365).

Almost surely, 2^28647260726 is an apocalyptic number.

28647260726 is a deficient number, since it is larger than the sum of its proper divisors (21900948034).

28647260726 is a wasteful number, since it uses less digits than its factorization.

28647260726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284588 (or 3284581 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 28647260726 in words is "twenty-eight billion, six hundred forty-seven million, two hundred sixty thousand, seven hundred twenty-six".