27869779476 has 216 divisors, whose sum is σ = 89098219392. Its totient is φ = 7189776000.

The previous prime is 27869779451. The next prime is 27869779499. The reversal of 27869779476 is 67497796872.

27869779476 is a `hidden beast` number, since 2 + 7 + 86 + 9 + 7 + 79 + 476 = 666.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 4601266 + ... + 4607318.

Almost surely, 2^27869779476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27869779476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44549109696).

27869779476 is an abundant number, since it is smaller than the sum of its proper divisors (61228439916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27869779476 is a wasteful number, since it uses less digits than its factorization.

27869779476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243 (or 6227 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 72.

The spelling of 27869779476 in words is "twenty-seven billion, eight hundred sixty-nine million, seven hundred seventy-nine thousand, four hundred seventy-six".