1420806609251 has 2 divisors, whose sum is σ = 1420806609252. Its totient is φ = 1420806609250.

The previous prime is 1420806609193. The next prime is 1420806609253. The reversal of 1420806609251 is 1529066080241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420806609251 - 2¹⁰ = 1420806608227 is a prime.

Together with 1420806609253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1420806609253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710403304625 + 710403304626.

It is an arithmetic number, because the mean of its divisors is an integer number (710403304626).

Almost surely, 2^{1420806609251} is an apocalyptic number.

1420806609251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420806609251 is an equidigital number, since it uses as much as digits as its factorization.

1420806609251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 1420806609251 in words is "one trillion, four hundred twenty billion, eight hundred six million, six hundred nine thousand, two hundred fifty-one".