27731407776223 has 2 divisors, whose sum is σ = 27731407776224. Its totient is φ = 27731407776222.

The previous prime is 27731407776187. The next prime is 27731407776229. The reversal of 27731407776223 is 32267770413772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27731407776223 - 2²⁵ = 27731374221791 is a prime.

It is a super-2 number, since 2×27731407776223² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27731407776229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865703888111 + 13865703888112.

It is an arithmetic number, because the mean of its divisors is an integer number (13865703888112).

Almost surely, 2^{27731407776223} is an apocalyptic number.

27731407776223 is a deficient number, since it is larger than the sum of its proper divisors (1).

27731407776223 is an equidigital number, since it uses as much as digits as its factorization.

27731407776223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29042496, while the sum is 58.

The spelling of 27731407776223 in words is "twenty-seven trillion, seven hundred thirty-one billion, four hundred seven million, seven hundred seventy-six thousand, two hundred twenty-three".