27826774481 has 16 divisors (see below), whose sum is σ = 30649977600. Its totient is φ = 25052716800.

The previous prime is 27826774439. The next prime is 27826774511. The reversal of 27826774481 is 18447762872.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27826774481 is a prime.

It is a super-2 number, since 2×27826774481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27826774681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3198185 + ... + 3206873.

It is an arithmetic number, because the mean of its divisors is an integer number (1915623600).

Almost surely, 2^27826774481 is an apocalyptic number.

It is an amenable number.

27826774481 is a deficient number, since it is larger than the sum of its proper divisors (2823203119).

27826774481 is a wasteful number, since it uses less digits than its factorization.

27826774481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480.

The product of its digits is 8429568, while the sum is 56.

The spelling of 27826774481 in words is "twenty-seven billion, eight hundred twenty-six million, seven hundred seventy-four thousand, four hundred eighty-one".