1421751711269 has 2 divisors, whose sum is σ = 1421751711270. Its totient is φ = 1421751711268.

The previous prime is 1421751711209. The next prime is 1421751711371. The reversal of 1421751711269 is 9621171571241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932817930625 + 488933780644 = 965825^2 + 699238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421751711269 is a prime.

It is a super-2 number, since 2×1421751711269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421751711209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710875855634 + 710875855635.

It is an arithmetic number, because the mean of its divisors is an integer number (710875855635).

Almost surely, 2^{1421751711269} is an apocalyptic number.

It is an amenable number.

1421751711269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421751711269 is an equidigital number, since it uses as much as digits as its factorization.

1421751711269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 47.

The spelling of 1421751711269 in words is "one trillion, four hundred twenty-one billion, seven hundred fifty-one million, seven hundred eleven thousand, two hundred sixty-nine".