827826274387 has 12 divisors (see below), whose sum is σ = 963065353800. Its totient is φ = 709503653376.

The previous prime is 827826274369. The next prime is 827826274409. The reversal of 827826274387 is 783472628728.

It is a de Polignac number, because none of the positive numbers 2^k-827826274387 is a prime.

It is a super-2 number, since 2×827826274387² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827826274337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161262 + ... + 1296787.

It is an arithmetic number, because the mean of its divisors is an integer number (80255446150).

Almost surely, 2^827826274387 is an apocalyptic number.

827826274387 is a deficient number, since it is larger than the sum of its proper divisors (135239079413).

827826274387 is a wasteful number, since it uses less digits than its factorization.

827826274387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469650 (or 1469643 counting only the distinct ones).

The product of its digits is 101154816, while the sum is 64.

The spelling of 827826274387 in words is "eight hundred twenty-seven billion, eight hundred twenty-six million, two hundred seventy-four thousand, three hundred eighty-seven".