395280497663 has 4 divisors (see below), whose sum is σ = 400847828688. Its totient is φ = 389713166640.

The previous prime is 395280497657. The next prime is 395280497687. The reversal of 395280497663 is 366794082593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366794082593 = 54469 ⋅6733997.

It is not a de Polignac number, because 395280497663 - 2¹² = 395280493567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395280497596 and 395280497605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395280497603) 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, 2783665406 + ... + 2783665547.

It is an arithmetic number, because the mean of its divisors is an integer number (100211957172).

Almost surely, 2^395280497663 is an apocalyptic number.

395280497663 is a deficient number, since it is larger than the sum of its proper divisors (5567331025).

395280497663 is an equidigital number, since it uses as much as digits as its factorization.

395280497663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567331024.

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 395280497663 in words is "three hundred ninety-five billion, two hundred eighty million, four hundred ninety-seven thousand, six hundred sixty-three".