28234401056 has 12 divisors (see below), whose sum is σ = 55586477142. Its totient is φ = 14117200512.

The previous prime is 28234401053. The next prime is 28234401079. The reversal of 28234401056 is 65010443282.

It can be written as a sum of positive squares in only one way, i.e., 28136707600 + 97693456 = 167740^2 + 9884^2 .

It is not an unprimeable number, because it can be changed into a prime (28234401053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 441162485 + ... + 441162548.

Almost surely, 2^28234401056 is an apocalyptic number.

It is an amenable number.

28234401056 is a deficient number, since it is larger than the sum of its proper divisors (27352076086).

28234401056 is an equidigital number, since it uses as much as digits as its factorization.

28234401056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882325043 (or 882325035 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 28234401056 in words is "twenty-eight billion, two hundred thirty-four million, four hundred one thousand, fifty-six".