397801066828307 has 4 divisors (see below), whose sum is σ = 397801106940120. Its totient is φ = 397801026716496.

The previous prime is 397801066828303. The next prime is 397801066828391. The reversal of 397801066828307 is 703828660108793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 397801066828307 - 2² = 397801066828303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397801066828303) 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, 6867863 + ... + 29030495.

It is an arithmetic number, because the mean of its divisors is an integer number (99450276735030).

Almost surely, 2^{397801066828307} is an apocalyptic number.

397801066828307 is a deficient number, since it is larger than the sum of its proper divisors (40111813).

397801066828307 is a wasteful number, since it uses less digits than its factorization.

397801066828307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40111812.

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 397801066828307 in words is "three hundred ninety-seven trillion, eight hundred one billion, sixty-six million, eight hundred twenty-eight thousand, three hundred seven".