827075463631 has 4 divisors (see below), whose sum is σ = 842680661112. Its totient is φ = 811470266152.

The previous prime is 827075463629. The next prime is 827075463649. The reversal of 827075463631 is 136364570728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 827075463631 - 2¹ = 827075463629 is a prime.

It is a super-2 number, since 2×827075463631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827075463661) 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, 7802598661 + ... + 7802598766.

It is an arithmetic number, because the mean of its divisors is an integer number (210670165278).

Almost surely, 2^827075463631 is an apocalyptic number.

827075463631 is a deficient number, since it is larger than the sum of its proper divisors (15605197481).

827075463631 is a wasteful number, since it uses less digits than its factorization.

827075463631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15605197480.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 827075463631 in words is "eight hundred twenty-seven billion, seventy-five million, four hundred sixty-three thousand, six hundred thirty-one".