827222987381 has 8 divisors (see below), whose sum is σ = 945405498624. Its totient is φ = 709042425840.

The previous prime is 827222987299. The next prime is 827222987401. The reversal of 827222987381 is 183789222728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 827222987381 - 2¹⁸ = 827222725237 is a prime.

It is a super-2 number, since 2×827222987381² (a number of 25 digits) contains 22 as substring.

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 827222987381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827222989381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576611 + ... + 1409583.

It is an arithmetic number, because the mean of its divisors is an integer number (118175687328).

Almost surely, 2^827222987381 is an apocalyptic number.

It is an amenable number.

827222987381 is a deficient number, since it is larger than the sum of its proper divisors (118182511243).

827222987381 is a wasteful number, since it uses less digits than its factorization.

827222987381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974851.

The product of its digits is 10838016, while the sum is 59.

The spelling of 827222987381 in words is "eight hundred twenty-seven billion, two hundred twenty-two million, nine hundred eighty-seven thousand, three hundred eighty-one".