27057680511 has 4 divisors (see below), whose sum is σ = 36076907352. Its totient is φ = 18038453672.

The previous prime is 27057680483. The next prime is 27057680519. The reversal of 27057680511 is 11508675072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27057680511 - 2¹⁰ = 27057679487 is a prime.

It is a super-2 number, since 2×27057680511² (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 (27057680519) 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 3 ways as a sum of consecutive naturals, for example, 4509613416 + ... + 4509613421.

It is an arithmetic number, because the mean of its divisors is an integer number (9019226838).

Almost surely, 2^27057680511 is an apocalyptic number.

27057680511 is a deficient number, since it is larger than the sum of its proper divisors (9019226841).

27057680511 is an equidigital number, since it uses as much as digits as its factorization.

27057680511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019226840.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 27057680511 in words is "twenty-seven billion, fifty-seven million, six hundred eighty thousand, five hundred eleven".