27485779548 has 24 divisors (see below), whose sum is σ = 64136519440. Its totient is φ = 9161493120.

The previous prime is 27485779543. The next prime is 27485779567. The reversal of 27485779548 is 84597758472.

It is a super-2 number, since 2×27485779548² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27485779543) 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 7 ways as a sum of consecutive naturals, for example, 305688 + ... + 385248.

Almost surely, 2^27485779548 is an apocalyptic number.

It is an amenable number.

27485779548 is an abundant number, since it is smaller than the sum of its proper divisors (36650739892).

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

27485779548 is a wasteful number, since it uses less digits than its factorization.

27485779548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108357 (or 108355 counting only the distinct ones).

The product of its digits is 158054400, while the sum is 66.

The spelling of 27485779548 in words is "twenty-seven billion, four hundred eighty-five million, seven hundred seventy-nine thousand, five hundred forty-eight".