4245771484961 has 2 divisors, whose sum is σ = 4245771484962. Its totient is φ = 4245771484960.

The previous prime is 4245771484937. The next prime is 4245771484967. The reversal of 4245771484961 is 1694841775424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2895629739025 + 1350141745936 = 1701655^2 + 1161956^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245771484961 - 2¹⁴ = 4245771468577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4245771484894 and 4245771484903.

It is not a weakly prime, because it can be changed into another prime (4245771484967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122885742480 + 2122885742481.

It is an arithmetic number, because the mean of its divisors is an integer number (2122885742481).

Almost surely, 2^{4245771484961} is an apocalyptic number.

It is an amenable number.

4245771484961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245771484961 is an equidigital number, since it uses as much as digits as its factorization.

4245771484961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54190080, while the sum is 62.

The spelling of 4245771484961 in words is "four trillion, two hundred forty-five billion, seven hundred seventy-one million, four hundred eighty-four thousand, nine hundred sixty-one".