396389135999 has 2 divisors, whose sum is σ = 396389136000. Its totient is φ = 396389135998.

The previous prime is 396389135927. The next prime is 396389136001. The reversal of 396389135999 is 999531983693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396389135999 - 2²⁴ = 396372358783 is a prime.

Together with 396389136001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396389132999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198194567999 + 198194568000.

It is an arithmetic number, because the mean of its divisors is an integer number (198194568000).

Almost surely, 2^396389135999 is an apocalyptic number.

396389135999 is a deficient number, since it is larger than the sum of its proper divisors (1).

396389135999 is an equidigital number, since it uses as much as digits as its factorization.

396389135999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 382637520, while the sum is 74.

The spelling of 396389135999 in words is "three hundred ninety-six billion, three hundred eighty-nine million, one hundred thirty-five thousand, nine hundred ninety-nine".