1301791264489 has 2 divisors, whose sum is σ = 1301791264490. Its totient is φ = 1301791264488.

The previous prime is 1301791264447. The next prime is 1301791264537. The reversal of 1301791264489 is 9844621971031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283133890025 + 18657374464 = 1132755^2 + 136592^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301791264489 - 2¹⁷ = 1301791133417 is a prime.

It is a super-2 number, since 2×1301791264489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1301791214489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650895632244 + 650895632245.

It is an arithmetic number, because the mean of its divisors is an integer number (650895632245).

Almost surely, 2^{1301791264489} is an apocalyptic number.

It is an amenable number.

1301791264489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301791264489 is an equidigital number, since it uses as much as digits as its factorization.

1301791264489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 1301791264489 in words is "one trillion, three hundred one billion, seven hundred ninety-one million, two hundred sixty-four thousand, four hundred eighty-nine".