3561436544 has 32 divisors (see below), whose sum is σ = 7098549240. Its totient is φ = 1779840000.

The previous prime is 3561436511. The next prime is 3561436547. The reversal of 3561436544 is 4456341653.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561436547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310919 + ... + 322169.

Almost surely, 2^3561436544 is an apocalyptic number.

It is an amenable number.

3561436544 is a deficient number, since it is larger than the sum of its proper divisors (3537112696).

3561436544 is a wasteful number, since it uses less digits than its factorization.

3561436544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738 (or 13726 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The square root of 3561436544 is about 59677.7726125900. The cubic root of 3561436544 is about 1527.1266996093.

The spelling of 3561436544 in words is "three billion, five hundred sixty-one million, four hundred thirty-six thousand, five hundred forty-four".