1421193080761 has 2 divisors, whose sum is σ = 1421193080762. Its totient is φ = 1421193080760.

The previous prime is 1421193080737. The next prime is 1421193080777. The reversal of 1421193080761 is 1670803911241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1344106334736 + 77086746025 = 1159356^2 + 277645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421193080761 - 2⁷ = 1421193080633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421193080731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710596540380 + 710596540381.

It is an arithmetic number, because the mean of its divisors is an integer number (710596540381).

Almost surely, 2^{1421193080761} is an apocalyptic number.

It is an amenable number.

1421193080761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421193080761 is an equidigital number, since it uses as much as digits as its factorization.

1421193080761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 1421193080761 in words is "one trillion, four hundred twenty-one billion, one hundred ninety-three million, eighty thousand, seven hundred sixty-one".