396372289545 has 12 divisors (see below), whose sum is σ = 687045301956. Its totient is φ = 211398554400.

The previous prime is 396372289529. The next prime is 396372289549. The reversal of 396372289545 is 545982273693.

396372289545 is a `hidden beast` number, since 3 + 9 + 6 + 3 + 7 + 2 + 2 + 89 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 293992768521 + 102379521024 = 542211^2 + 319968^2 .

It is not a de Polignac number, because 396372289545 - 2⁴ = 396372289529 is a prime.

It is a super-3 number, since 3×396372289545³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (396372289549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4404136506 + ... + 4404136595.

It is an arithmetic number, because the mean of its divisors is an integer number (57253775163).

Almost surely, 2^396372289545 is an apocalyptic number.

It is an amenable number.

396372289545 is a deficient number, since it is larger than the sum of its proper divisors (290673012411).

396372289545 is a wasteful number, since it uses less digits than its factorization.

396372289545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8808273112 (or 8808273109 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 396372289545 in words is "three hundred ninety-six billion, three hundred seventy-two million, two hundred eighty-nine thousand, five hundred forty-five".