27582451228991 has 2 divisors, whose sum is σ = 27582451228992. Its totient is φ = 27582451228990.

The previous prime is 27582451228979. The next prime is 27582451229041. The reversal of 27582451228991 is 19982215428572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27582451228991 - 2²⁶ = 27582384120127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27582451228691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13791225614495 + 13791225614496.

It is an arithmetic number, because the mean of its divisors is an integer number (13791225614496).

Almost surely, 2^{27582451228991} is an apocalyptic number.

27582451228991 is a deficient number, since it is larger than the sum of its proper divisors (1).

27582451228991 is an equidigital number, since it uses as much as digits as its factorization.

27582451228991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58060800, while the sum is 65.

The spelling of 27582451228991 in words is "twenty-seven trillion, five hundred eighty-two billion, four hundred fifty-one million, two hundred twenty-eight thousand, nine hundred ninety-one".