19829195661227 has 2 divisors, whose sum is σ = 19829195661228. Its totient is φ = 19829195661226.

The previous prime is 19829195661169. The next prime is 19829195661251. The reversal of 19829195661227 is 72216659192891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19829195661227 - 2⁸ = 19829195660971 is a prime.

It is a super-2 number, since 2×19829195661227² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19829195661287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9914597830613 + 9914597830614.

It is an arithmetic number, because the mean of its divisors is an integer number (9914597830614).

Almost surely, 2^{19829195661227} is an apocalyptic number.

19829195661227 is a deficient number, since it is larger than the sum of its proper divisors (1).

19829195661227 is an equidigital number, since it uses as much as digits as its factorization.

19829195661227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 68.

The spelling of 19829195661227 in words is "nineteen trillion, eight hundred twenty-nine billion, one hundred ninety-five million, six hundred sixty-one thousand, two hundred twenty-seven".