28774226241 has 10 divisors (see below), whose sum is σ = 42983720802. Its totient is φ = 19182817440.

The previous prime is 28774226233. The next prime is 28774226251. The reversal of 28774226241 is 14262247782.

28774226241 is a `hidden beast` number, since 287 + 74 + 2 + 262 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27665336241 + 1108890000 = 166329^2 + 33300^2 .

It is not a de Polignac number, because 28774226241 - 2³ = 28774226233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28774226251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 177618600 + ... + 177618761.

Almost surely, 2^28774226241 is an apocalyptic number.

It is an amenable number.

28774226241 is a deficient number, since it is larger than the sum of its proper divisors (14209494561).

28774226241 is an equidigital number, since it uses as much as digits as its factorization.

28774226241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355237373 (or 355237364 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The spelling of 28774226241 in words is "twenty-eight billion, seven hundred seventy-four million, two hundred twenty-six thousand, two hundred forty-one".