395836363309 has 4 divisors (see below), whose sum is σ = 397887329116. Its totient is φ = 393785397504.

The previous prime is 395836363297. The next prime is 395836363339. The reversal of 395836363309 is 903363638593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183974082084 + 211862281225 = 428922^2 + 460285^2 .

It is a cyclic number.

It is not a de Polignac number, because 395836363309 - 2¹⁷ = 395836232237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395836363339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025482614 + ... + 1025482999.

It is an arithmetic number, because the mean of its divisors is an integer number (99471832279).

Almost surely, 2^395836363309 is an apocalyptic number.

It is an amenable number.

395836363309 is a deficient number, since it is larger than the sum of its proper divisors (2050965807).

395836363309 is a wasteful number, since it uses less digits than its factorization.

395836363309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050965806.

The product of its (nonzero) digits is 28343520, while the sum is 58.

The spelling of 395836363309 in words is "three hundred ninety-five billion, eight hundred thirty-six million, three hundred sixty-three thousand, three hundred nine".