395023744897 has 2 divisors, whose sum is σ = 395023744898. Its totient is φ = 395023744896.

The previous prime is 395023744891. The next prime is 395023744933. The reversal of 395023744897 is 798447320593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380354659441 + 14669085456 = 616729^2 + 121116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395023744897 is a prime.

It is not a weakly prime, because it can be changed into another prime (395023744891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197511872448 + 197511872449.

It is an arithmetic number, because the mean of its divisors is an integer number (197511872449).

Almost surely, 2^395023744897 is an apocalyptic number.

It is an amenable number.

395023744897 is a deficient number, since it is larger than the sum of its proper divisors (1).

395023744897 is an equidigital number, since it uses as much as digits as its factorization.

395023744897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 395023744897 in words is "three hundred ninety-five billion, twenty-three million, seven hundred forty-four thousand, eight hundred ninety-seven".