28774608171 has 8 divisors (see below), whose sum is σ = 38467375680. Its totient is φ = 19132456392.

The previous prime is 28774608167. The next prime is 28774608173. The reversal of 28774608171 is 17180647782.

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

It is not a de Polignac number, because 28774608171 - 2² = 28774608167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28774608173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12652605 + ... + 12654878.

It is an arithmetic number, because the mean of its divisors is an integer number (4808421960).

Almost surely, 2^28774608171 is an apocalyptic number.

28774608171 is a deficient number, since it is larger than the sum of its proper divisors (9692767509).

28774608171 is a wasteful number, since it uses less digits than its factorization.

28774608171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25307865.

The product of its (nonzero) digits is 1053696, while the sum is 51.

The spelling of 28774608171 in words is "twenty-eight billion, seven hundred seventy-four million, six hundred eight thousand, one hundred seventy-one".