28774414434 has 8 divisors (see below), whose sum is σ = 57548828880. Its totient is φ = 9591471476.

The previous prime is 28774414391. The next prime is 28774414483. The reversal of 28774414434 is 43441447782.

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

28774414434 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2397867864 + ... + 2397867875.

It is an arithmetic number, because the mean of its divisors is an integer number (7193603610).

Almost surely, 2^28774414434 is an apocalyptic number.

28774414434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28774414434 is a wasteful number, since it uses less digits than its factorization.

28774414434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795735744.

The product of its digits is 2408448, while the sum is 48.

The spelling of 28774414434 in words is "twenty-eight billion, seven hundred seventy-four million, four hundred fourteen thousand, four hundred thirty-four".