28577783366 has 16 divisors (see below), whose sum is σ = 46830380688. Its totient is φ = 12971364000.

The previous prime is 28577783341. The next prime is 28577783371. The reversal of 28577783366 is 66338777582.

It is a super-2 number, since 2×28577783366² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28577783299 and 28577783308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911105 + ... + 941948.

It is an arithmetic number, because the mean of its divisors is an integer number (2926898793).

Almost surely, 2^28577783366 is an apocalyptic number.

28577783366 is a deficient number, since it is larger than the sum of its proper divisors (18252597322).

28577783366 is a wasteful number, since it uses less digits than its factorization.

28577783366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853767.

The product of its digits is 71124480, while the sum is 62.

The spelling of 28577783366 in words is "twenty-eight billion, five hundred seventy-seven million, seven hundred eighty-three thousand, three hundred sixty-six".