27709054477 has 64 divisors (see below), whose sum is σ = 34871316480. Its totient is φ = 21735014400.

The previous prime is 27709054441. The next prime is 27709054493. The reversal of 27709054477 is 77445090772.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27709054477 - 2⁷ = 27709054349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27709054277) 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 63 ways as a sum of consecutive naturals, for example, 6458349 + ... + 6462637.

It is an arithmetic number, because the mean of its divisors is an integer number (544864320).

Almost surely, 2^27709054477 is an apocalyptic number.

It is an amenable number.

27709054477 is a deficient number, since it is larger than the sum of its proper divisors (7162262003).

27709054477 is a wasteful number, since it uses less digits than its factorization.

27709054477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 27709054477 in words is "twenty-seven billion, seven hundred nine million, fifty-four thousand, four hundred seventy-seven".