27764456655 has 16 divisors (see below), whose sum is σ = 47840294880. Its totient is φ = 13668655488.

The previous prime is 27764456611. The next prime is 27764456659. The reversal of 27764456655 is 55665446772.

It is not a de Polignac number, because 27764456655 - 2⁷ = 27764456527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27764456595 and 27764456604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27764456659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71190720 + ... + 71191109.

It is an arithmetic number, because the mean of its divisors is an integer number (2990018430).

Almost surely, 2^27764456655 is an apocalyptic number.

27764456655 is a deficient number, since it is larger than the sum of its proper divisors (20075838225).

27764456655 is a wasteful number, since it uses less digits than its factorization.

27764456655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142381850.

The product of its digits is 42336000, while the sum is 57.

The spelling of 27764456655 in words is "twenty-seven billion, seven hundred sixty-four million, four hundred fifty-six thousand, six hundred fifty-five".