397553565355793 has 32 divisors (see below), whose sum is σ = 499752543633408. Its totient is φ = 309778865903760.

The previous prime is 397553565355787. The next prime is 397553565355861.

397553565355793 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 397553565355793 - 2⁸ = 397553565355537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397553565354793) 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 31 ways as a sum of consecutive naturals, for example, 1429153946 + ... + 1429432092.

It is an arithmetic number, because the mean of its divisors is an integer number (15617266988544).

Almost surely, 2^{397553565355793} is an apocalyptic number.

It is an amenable number.

397553565355793 is a deficient number, since it is larger than the sum of its proper divisors (102198978277615).

397553565355793 is a wasteful number, since it uses less digits than its factorization.

397553565355793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431594 (or 431572 counting only the distinct ones).

The product of its digits is 30139593750, while the sum is 80.

The spelling of 397553565355793 in words is "three hundred ninety-seven trillion, five hundred fifty-three billion, five hundred sixty-five million, three hundred fifty-five thousand, seven hundred ninety-three".