27892315422721 has 2 divisors, whose sum is σ = 27892315422722. Its totient is φ = 27892315422720.

The previous prime is 27892315422709. The next prime is 27892315422733. The reversal of 27892315422721 is 12722451329872.

It is a balanced prime because it is at equal distance from previous prime (27892315422709) and next prime (27892315422733).

It can be written as a sum of positive squares in only one way, i.e., 16725122612496 + 11167192810225 = 4089636^2 + 3341735^2 .

It is a cyclic number.

It is not a de Polignac number, because 27892315422721 - 2¹³ = 27892315414529 is a prime.

It is not a weakly prime, because it can be changed into another prime (27892315428721) 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 as a sum of consecutive naturals, namely, 13946157711360 + 13946157711361.

It is an arithmetic number, because the mean of its divisors is an integer number (13946157711361).

Almost surely, 2^{27892315422721} is an apocalyptic number.

It is an amenable number.

27892315422721 is a deficient number, since it is larger than the sum of its proper divisors (1).

27892315422721 is an equidigital number, since it uses as much as digits as its factorization.

27892315422721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 55.

The spelling of 27892315422721 in words is "twenty-seven trillion, eight hundred ninety-two billion, three hundred fifteen million, four hundred twenty-two thousand, seven hundred twenty-one".