28566065226 has 32 divisors (see below), whose sum is σ = 61321529088. Its totient is φ = 8839134720.

The previous prime is 28566065201. The next prime is 28566065249. The reversal of 28566065226 is 62256066582.

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, 1910770 + ... + 1925661.

It is an arithmetic number, because the mean of its divisors is an integer number (1916297784).

Almost surely, 2^28566065226 is an apocalyptic number.

28566065226 is an abundant number, since it is smaller than the sum of its proper divisors (32755463862).

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

28566065226 is a wasteful number, since it uses less digits than its factorization.

28566065226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836526.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 28566065226 in words is "twenty-eight billion, five hundred sixty-six million, sixty-five thousand, two hundred twenty-six".