28534944776 has 32 divisors (see below), whose sum is σ = 57626025240. Its totient is φ = 13168286208.

The previous prime is 28534944761. The next prime is 28534944787. The reversal of 28534944776 is 67744943582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26984632900 + 1550311876 = 164270^2 + 39374^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202660 + ... + 1226156.

Almost surely, 2^28534944776 is an apocalyptic number.

28534944776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28534944776 is an abundant number, since it is smaller than the sum of its proper divisors (29091080464).

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

28534944776 is a wasteful number, since it uses less digits than its factorization.

28534944776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35193 (or 35189 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 59.

The spelling of 28534944776 in words is "twenty-eight billion, five hundred thirty-four million, nine hundred forty-four thousand, seven hundred seventy-six".