395366565492 has 18 divisors (see below), whose sum is σ = 999398818418. Its totient is φ = 131788855152.

The previous prime is 395366565449. The next prime is 395366565497. The reversal of 395366565492 is 294565663593.

It is a happy number.

395366565492 is a `hidden beast` number, since 3 + 9 + 5 + 3 + 66 + 565 + 4 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 282305192976 + 113061372516 = 531324^2 + 336246^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×395366565492² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395366565497) 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 5 ways as a sum of consecutive naturals, for example, 5491202263 + ... + 5491202334.

Almost surely, 2^395366565492 is an apocalyptic number.

It is an amenable number.

395366565492 is an abundant number, since it is smaller than the sum of its proper divisors (604032252926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395366565492 is a wasteful number, since it uses less digits than its factorization.

395366565492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10982404607 (or 10982404602 counting only the distinct ones).

The product of its digits is 157464000, while the sum is 63.

The spelling of 395366565492 in words is "three hundred ninety-five billion, three hundred sixty-six million, five hundred sixty-five thousand, four hundred ninety-two".