28277015804 has 24 divisors (see below), whose sum is σ = 50294531280. Its totient is φ = 13907748096.

The previous prime is 28277015803. The next prime is 28277015821. The reversal of 28277015804 is 40851077282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28277015803) 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, 115604 + ... + 264420.

It is an arithmetic number, because the mean of its divisors is an integer number (2095605470).

Almost surely, 2^28277015804 is an apocalyptic number.

It is an amenable number.

28277015804 is a deficient number, since it is larger than the sum of its proper divisors (22017515476).

28277015804 is a wasteful number, since it uses less digits than its factorization.

28277015804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149597 (or 149595 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The spelling of 28277015804 in words is "twenty-eight billion, two hundred seventy-seven million, fifteen thousand, eight hundred four".