28267782834 has 16 divisors (see below), whose sum is σ = 56789091072. Its totient is φ = 9380340048.

The previous prime is 28267782821. The next prime is 28267782911. The reversal of 28267782834 is 43828776282.

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, 10562109 + ... + 10564784.

It is an arithmetic number, because the mean of its divisors is an integer number (3549318192).

Almost surely, 2^28267782834 is an apocalyptic number.

28267782834 is an abundant number, since it is smaller than the sum of its proper divisors (28521308238).

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

28267782834 is a wasteful number, since it uses less digits than its factorization.

28267782834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21127121.

The product of its digits is 14450688, while the sum is 57.

The spelling of 28267782834 in words is "twenty-eight billion, two hundred sixty-seven million, seven hundred eighty-two thousand, eight hundred thirty-four".