27049485780 has 72 divisors (see below), whose sum is σ = 82802920200. Its totient is φ = 7147014912.

The previous prime is 27049485739. The next prime is 27049485797. The reversal of 27049485780 is 8758494072.

It is a happy number.

27049485780 is a `hidden beast` number, since 2 + 7 + 0 + 494 + 85 + 78 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8939324304 + 18110161476 = 94548^2 + 134574^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 669715 + ... + 708954.

Almost surely, 2^27049485780 is an apocalyptic number.

27049485780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27049485780 is an abundant number, since it is smaller than the sum of its proper divisors (55753434420).

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

27049485780 is a wasteful number, since it uses less digits than its factorization.

27049485780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378793 (or 1378788 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 27049485780 in words is "twenty-seven billion, forty-nine million, four hundred eighty-five thousand, seven hundred eighty".