396574755021 has 12 divisors (see below), whose sum is σ = 573019731648. Its totient is φ = 264295694664.

The previous prime is 396574755001. The next prime is 396574755067. The reversal of 396574755021 is 120557475693.

It is a happy number.

396574755021 is a `hidden beast` number, since 3 + 9 + 65 + 7 + 4 + 7 + 550 + 21 = 666.

It is not a de Polignac number, because 396574755021 - 2⁷ = 396574754893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396574755001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7260895 + ... + 7315308.

It is an arithmetic number, because the mean of its divisors is an integer number (47751644304).

Almost surely, 2^396574755021 is an apocalyptic number.

It is an amenable number.

396574755021 is a deficient number, since it is larger than the sum of its proper divisors (176444976627).

396574755021 is a wasteful number, since it uses less digits than its factorization.

396574755021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14579232 (or 14579229 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 396574755021 in words is "three hundred ninety-six billion, five hundred seventy-four million, seven hundred fifty-five thousand, twenty-one".