396013811663 has 4 divisors (see below), whose sum is σ = 396052154568. Its totient is φ = 395975468760.

The previous prime is 396013811651. The next prime is 396013811719. The reversal of 396013811663 is 366118310693.

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

It is a cyclic number.

It is not a de Polignac number, because 396013811663 - 2¹⁰ = 396013810639 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 (396013811623) 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, 19155956 + ... + 19176617.

It is an arithmetic number, because the mean of its divisors is an integer number (99013038642).

Almost surely, 2^396013811663 is an apocalyptic number.

396013811663 is a deficient number, since it is larger than the sum of its proper divisors (38342905).

396013811663 is a wasteful number, since it uses less digits than its factorization.

396013811663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38342904.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 396013811663 in words is "three hundred ninety-six billion, thirteen million, eight hundred eleven thousand, six hundred sixty-three".