395630936069 has 2 divisors, whose sum is σ = 395630936070. Its totient is φ = 395630936068.

The previous prime is 395630936021. The next prime is 395630936087. The reversal of 395630936069 is 960639036593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254207556100 + 141423379969 = 504190^2 + 376063^2 .

It is a cyclic number.

It is not a de Polignac number, because 395630936069 - 2²⁰ = 395629887493 is a prime.

It is a super-2 number, since 2×395630936069² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395630935999 and 395630936017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395630939069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197815468034 + 197815468035.

It is an arithmetic number, because the mean of its divisors is an integer number (197815468035).

Almost surely, 2^395630936069 is an apocalyptic number.

It is an amenable number.

395630936069 is a deficient number, since it is larger than the sum of its proper divisors (1).

395630936069 is an equidigital number, since it uses as much as digits as its factorization.

395630936069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21257640, while the sum is 59.

The spelling of 395630936069 in words is "three hundred ninety-five billion, six hundred thirty million, nine hundred thirty-six thousand, sixty-nine".