396364686872409 has 8 divisors (see below), whose sum is σ = 587206943514720. Its totient is φ = 264243124581588.

The previous prime is 396364686872393. The next prime is 396364686872443. The reversal of 396364686872409 is 904278686463693.

396364686872409 is a `hidden beast` number, since 3 + 9 + 6 + 3 + 64 + 6 + 86 + 8 + 72 + 409 = 666.

It is not a de Polignac number, because 396364686872409 - 2⁴ = 396364686872393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396364686872909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7340086793907 + ... + 7340086793960.

It is an arithmetic number, because the mean of its divisors is an integer number (73400867939340).

Almost surely, 2^{396364686872409} is an apocalyptic number.

It is an amenable number.

396364686872409 is a deficient number, since it is larger than the sum of its proper divisors (190842256642311).

396364686872409 is a wasteful number, since it uses less digits than its factorization.

396364686872409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14680173587876 (or 14680173587870 counting only the distinct ones).

The product of its (nonzero) digits is 13544423424, while the sum is 81.

The spelling of 396364686872409 in words is "three hundred ninety-six trillion, three hundred sixty-four billion, six hundred eighty-six million, eight hundred seventy-two thousand, four hundred nine".