395788634623 has 2 divisors, whose sum is σ = 395788634624. Its totient is φ = 395788634622.

The previous prime is 395788634587. The next prime is 395788634627. The reversal of 395788634623 is 326436887593.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395788634623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395788634627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197894317311 + 197894317312.

It is an arithmetic number, because the mean of its divisors is an integer number (197894317312).

Almost surely, 2^395788634623 is an apocalyptic number.

395788634623 is a deficient number, since it is larger than the sum of its proper divisors (1).

395788634623 is an equidigital number, since it uses as much as digits as its factorization.

395788634623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 64.

The spelling of 395788634623 in words is "three hundred ninety-five billion, seven hundred eighty-eight million, six hundred thirty-four thousand, six hundred twenty-three".