4556561436 has 36 divisors (see below), whose sum is σ = 13163400432. Its totient is φ = 1301874624.

The previous prime is 4556561431. The next prime is 4556561479. The reversal of 4556561436 is 6341656554.

4556561436 is a `hidden beast` number, since 4 + 5 + 56 + 561 + 4 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 4556561391 and 4556561400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4556561431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9040545 + ... + 9041048.

It is an arithmetic number, because the mean of its divisors is an integer number (365650012).

Almost surely, 2^4556561436 is an apocalyptic number.

It is an amenable number.

4556561436 is an abundant number, since it is smaller than the sum of its proper divisors (8606838996).

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

4556561436 is a wasteful number, since it uses less digits than its factorization.

4556561436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081610 (or 18081605 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 4556561436 is about 67502.3068939129. The cubic root of 4556561436 is about 1657.8519460390.

The spelling of 4556561436 in words is "four billion, five hundred fifty-six million, five hundred sixty-one thousand, four hundred thirty-six".