28277430056 has 64 divisors (see below), whose sum is σ = 55643777280. Its totient is φ = 13457848320.

The previous prime is 28277430043. The next prime is 28277430121. The reversal of 28277430056 is 65003477282.

It is a super-2 number, since 2×28277430056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28277429989 and 28277430016.

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 15 ways as a sum of consecutive naturals, for example, 5192471 + ... + 5197913.

It is an arithmetic number, because the mean of its divisors is an integer number (869434020).

Almost surely, 2^28277430056 is an apocalyptic number.

It is an amenable number.

28277430056 is a deficient number, since it is larger than the sum of its proper divisors (27366347224).

28277430056 is a wasteful number, since it uses less digits than its factorization.

28277430056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874 (or 5870 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 28277430056 in words is "twenty-eight billion, two hundred seventy-seven million, four hundred thirty thousand, fifty-six".