396399960001 has 4 divisors (see below), whose sum is σ = 396835087104. Its totient is φ = 395964832900.

The previous prime is 396399959981. The next prime is 396399960007. The reversal of 396399960001 is 100069993693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100069993693 = 23 ⋅4350869291.

It is a cyclic number.

It is not a de Polignac number, because 396399960001 - 2⁹ = 396399959489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396399960007) 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, 217562185 + ... + 217564006.

It is an arithmetic number, because the mean of its divisors is an integer number (99208771776).

Almost surely, 2^396399960001 is an apocalyptic number.

It is an amenable number.

396399960001 is a deficient number, since it is larger than the sum of its proper divisors (435127103).

396399960001 is an equidigital number, since it uses as much as digits as its factorization.

396399960001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435127102.

The product of its (nonzero) digits is 2125764, while the sum is 55.

The spelling of 396399960001 in words is "three hundred ninety-six billion, three hundred ninety-nine million, nine hundred sixty thousand, one".