28774075361 has 8 divisors (see below), whose sum is σ = 30315493920. Its totient is φ = 27235356192.

The previous prime is 28774075327. The next prime is 28774075367. The reversal of 28774075361 is 16357047782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28774075361 - 2¹⁰ = 28774074337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28774075367) 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 7 ways as a sum of consecutive naturals, for example, 652940 + ... + 695613.

It is an arithmetic number, because the mean of its divisors is an integer number (3789436740).

Almost surely, 2^28774075361 is an apocalyptic number.

It is an amenable number.

28774075361 is a deficient number, since it is larger than the sum of its proper divisors (1541418559).

28774075361 is a wasteful number, since it uses less digits than its factorization.

28774075361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349695.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 28774075361 in words is "twenty-eight billion, seven hundred seventy-four million, seventy-five thousand, three hundred sixty-one".