1427980409827 has 2 divisors, whose sum is σ = 1427980409828. Its totient is φ = 1427980409826.

The previous prime is 1427980409759. The next prime is 1427980409873. The reversal of 1427980409827 is 7289040897241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1427980409827 - 2²⁷ = 1427846192099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1427980400827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713990204913 + 713990204914.

It is an arithmetic number, because the mean of its divisors is an integer number (713990204914).

Almost surely, 2^{1427980409827} is an apocalyptic number.

1427980409827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427980409827 is an equidigital number, since it uses as much as digits as its factorization.

1427980409827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 1427980409827 in words is "one trillion, four hundred twenty-seven billion, nine hundred eighty million, four hundred nine thousand, eight hundred twenty-seven".