27755531311 has 2 divisors, whose sum is σ = 27755531312. Its totient is φ = 27755531310.

The previous prime is 27755531263. The next prime is 27755531329. The reversal of 27755531311 is 11313555772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27755531311 - 2¹⁵ = 27755498543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27755534311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877765655 + 13877765656.

It is an arithmetic number, because the mean of its divisors is an integer number (13877765656).

Almost surely, 2^27755531311 is an apocalyptic number.

27755531311 is a deficient number, since it is larger than the sum of its proper divisors (1).

27755531311 is an equidigital number, since it uses as much as digits as its factorization.

27755531311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110250, while the sum is 40.

The spelling of 27755531311 in words is "twenty-seven billion, seven hundred fifty-five million, five hundred thirty-one thousand, three hundred eleven".