27422156225521 has 2 divisors, whose sum is σ = 27422156225522. Its totient is φ = 27422156225520.

The previous prime is 27422156225489. The next prime is 27422156225537. The reversal of 27422156225521 is 12552265122472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20934870815296 + 6487285410225 = 4575464^2 + 2547015^2 .

It is a cyclic number.

It is not a de Polignac number, because 27422156225521 - 2⁵ = 27422156225489 is a prime.

It is not a weakly prime, because it can be changed into another prime (27422156225561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13711078112760 + 13711078112761.

It is an arithmetic number, because the mean of its divisors is an integer number (13711078112761).

Almost surely, 2^{27422156225521} is an apocalyptic number.

It is an amenable number.

27422156225521 is a deficient number, since it is larger than the sum of its proper divisors (1).

27422156225521 is an equidigital number, since it uses as much as digits as its factorization.

27422156225521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344000, while the sum is 46.

The spelling of 27422156225521 in words is "twenty-seven trillion, four hundred twenty-two billion, one hundred fifty-six million, two hundred twenty-five thousand, five hundred twenty-one".