395673496289 has 4 divisors (see below), whose sum is σ = 396208914480. Its totient is φ = 395138078100.

The previous prime is 395673496279. The next prime is 395673496297. The reversal of 395673496289 is 982694376593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395673496289 is a prime.

It is a super-2 number, since 2×395673496289² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395673496259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267707987 + ... + 267709464.

It is an arithmetic number, because the mean of its divisors is an integer number (99052228620).

Almost surely, 2^395673496289 is an apocalyptic number.

It is an amenable number.

395673496289 is a deficient number, since it is larger than the sum of its proper divisors (535418191).

395673496289 is an equidigital number, since it uses as much as digits as its factorization.

395673496289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535418190.

The product of its digits is 529079040, while the sum is 71.

The spelling of 395673496289 in words is "three hundred ninety-five billion, six hundred seventy-three million, four hundred ninety-six thousand, two hundred eighty-nine".