28626268826 has 16 divisors (see below), whose sum is σ = 44191993824. Its totient is φ = 13899452784.

The previous prime is 28626268751. The next prime is 28626268841. The reversal of 28626268826 is 62886262682.

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, 947156 + ... + 976911.

It is an arithmetic number, because the mean of its divisors is an integer number (2761999614).

Almost surely, 2^28626268826 is an apocalyptic number.

28626268826 is a deficient number, since it is larger than the sum of its proper divisors (15565724998).

28626268826 is a wasteful number, since it uses less digits than its factorization.

28626268826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924285.

The product of its digits is 10616832, while the sum is 56.

The spelling of 28626268826 in words is "twenty-eight billion, six hundred twenty-six million, two hundred sixty-eight thousand, eight hundred twenty-six".