1428206645771 has 2 divisors, whose sum is σ = 1428206645772. Its totient is φ = 1428206645770.

The previous prime is 1428206645687. The next prime is 1428206645777. The reversal of 1428206645771 is 1775466028241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1428206645771 - 2¹⁰ = 1428206644747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428206645777) 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, 714103322885 + 714103322886.

It is an arithmetic number, because the mean of its divisors is an integer number (714103322886).

Almost surely, 2^{1428206645771} is an apocalyptic number.

1428206645771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428206645771 is an equidigital number, since it uses as much as digits as its factorization.

1428206645771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 1428206645771 in words is "one trillion, four hundred twenty-eight billion, two hundred six million, six hundred forty-five thousand, seven hundred seventy-one".