1421343272677 has 2 divisors, whose sum is σ = 1421343272678. Its totient is φ = 1421343272676.

The previous prime is 1421343272621. The next prime is 1421343272693. The reversal of 1421343272677 is 7762723431241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1304817305796 + 116525966881 = 1142286^2 + 341359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421343272677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421343272677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421343276677) 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, 710671636338 + 710671636339.

It is an arithmetic number, because the mean of its divisors is an integer number (710671636339).

Almost surely, 2^{1421343272677} is an apocalyptic number.

It is an amenable number.

1421343272677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421343272677 is an equidigital number, since it uses as much as digits as its factorization.

1421343272677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 49.

The spelling of 1421343272677 in words is "one trillion, four hundred twenty-one billion, three hundred forty-three million, two hundred seventy-two thousand, six hundred seventy-seven".