534242865645 has 18 divisors (see below), whose sum is σ = 926029465998. Its totient is φ = 284926913328.

The previous prime is 534242865631. The next prime is 534242865647. The reversal of 534242865645 is 546568242435.

534242865645 is a `hidden beast` number, since 5 + 34 + 2 + 42 + 8 + 6 + 564 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 427394292516 + 106848573129 = 653754^2 + 326877^2 .

It is not a de Polignac number, because 534242865645 - 2¹¹ = 534242863597 is a prime.

It is a super-3 number, since 3×534242865645³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 534242865591 and 534242865600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534242865647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4848676 + ... + 4957634.

Almost surely, 2^534242865645 is an apocalyptic number.

It is an amenable number.

534242865645 is a deficient number, since it is larger than the sum of its proper divisors (391786600353).

534242865645 is an frugal number, since it uses more digits than its factorization.

534242865645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217929 (or 108967 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 54.

The spelling of 534242865645 in words is "five hundred thirty-four billion, two hundred forty-two million, eight hundred sixty-five thousand, six hundred forty-five".