28285310365 has 32 divisors (see below), whose sum is σ = 37401025536. Its totient is φ = 20408578560.

The previous prime is 28285310351. The next prime is 28285310387. The reversal of 28285310365 is 56301358282.

It is not a de Polignac number, because 28285310365 - 2⁷ = 28285310237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479860 + ... + 535570.

It is an arithmetic number, because the mean of its divisors is an integer number (1168782048).

Almost surely, 2^28285310365 is an apocalyptic number.

It is an amenable number.

28285310365 is a deficient number, since it is larger than the sum of its proper divisors (9115715171).

28285310365 is a wasteful number, since it uses less digits than its factorization.

28285310365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55909.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 28285310365 in words is "twenty-eight billion, two hundred eighty-five million, three hundred ten thousand, three hundred sixty-five".