827775874613 has 4 divisors (see below), whose sum is σ = 827906054880. Its totient is φ = 827645694348.

The previous prime is 827775874603. The next prime is 827775874661. The reversal of 827775874613 is 316478577728.

827775874613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 827775874613 - 2³² = 823480907317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 827775874613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827775874603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65080595 + ... + 65093312.

It is an arithmetic number, because the mean of its divisors is an integer number (206976513720).

Almost surely, 2^827775874613 is an apocalyptic number.

It is an amenable number.

827775874613 is a deficient number, since it is larger than the sum of its proper divisors (130180267).

827775874613 is a wasteful number, since it uses less digits than its factorization.

827775874613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130180266.

The product of its digits is 110638080, while the sum is 65.

The spelling of 827775874613 in words is "eight hundred twenty-seven billion, seven hundred seventy-five million, eight hundred seventy-four thousand, six hundred thirteen".