444577773413197 has 2 divisors, whose sum is σ = 444577773413198. Its totient is φ = 444577773413196.

The previous prime is 444577773413167. The next prime is 444577773413219. The reversal of 444577773413197 is 791314377775444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444066861535236 + 510911877961 = 21072894^2 + 714781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444577773413197 is a prime.

It is a super-2 number, since 2×444577773413197² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444577773413167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222288886706598 + 222288886706599.

It is an arithmetic number, because the mean of its divisors is an integer number (222288886706599).

Almost surely, 2^{444577773413197} is an apocalyptic number.

It is an amenable number.

444577773413197 is a deficient number, since it is larger than the sum of its proper divisors (1).

444577773413197 is an equidigital number, since it uses as much as digits as its factorization.

444577773413197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1742549760, while the sum is 73.

The spelling of 444577773413197 in words is "four hundred forty-four trillion, five hundred seventy-seven billion, seven hundred seventy-three million, four hundred thirteen thousand, one hundred ninety-seven".