28774461774 has 16 divisors (see below), whose sum is σ = 57550740480. Its totient is φ = 9591184440.

The previous prime is 28774461713. The next prime is 28774461791. The reversal of 28774461774 is 47716447782.

It is a congruent number.

It is an unprimeable number.

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, 217569 + ... + 323859.

It is an arithmetic number, because the mean of its divisors is an integer number (3596921280).

Almost surely, 2^28774461774 is an apocalyptic number.

28774461774 is an abundant number, since it is smaller than the sum of its proper divisors (28776278706).

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

28774461774 is a wasteful number, since it uses less digits than its factorization.

28774461774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151415.

The product of its digits is 14751744, while the sum is 57.

The spelling of 28774461774 in words is "twenty-eight billion, seven hundred seventy-four million, four hundred sixty-one thousand, seven hundred seventy-four".