395264434849 has 2 divisors, whose sum is σ = 395264434850. Its totient is φ = 395264434848.

The previous prime is 395264434783. The next prime is 395264434879. The reversal of 395264434849 is 948434462593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374219710225 + 21044724624 = 611735^2 + 145068^2 .

It is a cyclic number.

It is not a de Polignac number, because 395264434849 - 2³³ = 386674500257 is a prime.

It is not a weakly prime, because it can be changed into another prime (395264434879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197632217424 + 197632217425.

It is an arithmetic number, because the mean of its divisors is an integer number (197632217425).

Almost surely, 2^395264434849 is an apocalyptic number.

It is an amenable number.

395264434849 is a deficient number, since it is larger than the sum of its proper divisors (1).

395264434849 is an equidigital number, since it uses as much as digits as its factorization.

395264434849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89579520, while the sum is 61.

The spelling of 395264434849 in words is "three hundred ninety-five billion, two hundred sixty-four million, four hundred thirty-four thousand, eight hundred forty-nine".