827025680645 has 16 divisors (see below), whose sum is σ = 994930941888. Its totient is φ = 659954866560.

The previous prime is 827025680627. The next prime is 827025680671. The reversal of 827025680645 is 546086520728.

It is not a de Polignac number, because 827025680645 - 2⁸ = 827025680389 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 15 ways as a sum of consecutive naturals, for example, 6255425 + ... + 6386265.

It is an arithmetic number, because the mean of its divisors is an integer number (62183183868).

Almost surely, 2^827025680645 is an apocalyptic number.

It is an amenable number.

827025680645 is a deficient number, since it is larger than the sum of its proper divisors (167905261243).

827025680645 is a wasteful number, since it uses less digits than its factorization.

827025680645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134020.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 827025680645 in words is "eight hundred twenty-seven billion, twenty-five million, six hundred eighty thousand, six hundred forty-five".