28642860266 has 16 divisors (see below), whose sum is σ = 43904113344. Its totient is φ = 14011506624.

The previous prime is 28642860217. The next prime is 28642860271. The reversal of 28642860266 is 66206824682.

It is a Curzon 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, 820511 + ... + 854706.

It is an arithmetic number, because the mean of its divisors is an integer number (2744007084).

Almost surely, 2^28642860266 is an apocalyptic number.

28642860266 is a deficient number, since it is larger than the sum of its proper divisors (15261253078).

28642860266 is a wasteful number, since it uses less digits than its factorization.

28642860266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675405.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 28642860266 in words is "twenty-eight billion, six hundred forty-two million, eight hundred sixty thousand, two hundred sixty-six".