5436531643 has 8 divisors (see below), whose sum is σ = 6006603168. Its totient is φ = 4894268544.

The previous prime is 5436531641. The next prime is 5436531673. The reversal of 5436531643 is 3461356345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5436531643 - 2¹ = 5436531641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5436531596 and 5436531605.

It is not an unprimeable number, because it can be changed into a prime (5436531641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6951696 + ... + 6952477.

It is an arithmetic number, because the mean of its divisors is an integer number (750825396).

Almost surely, 2^5436531643 is an apocalyptic number.

5436531643 is a deficient number, since it is larger than the sum of its proper divisors (570071525).

5436531643 is a wasteful number, since it uses less digits than its factorization.

5436531643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13904213.

The product of its digits is 388800, while the sum is 40.

The square root of 5436531643 is about 73732.8396509995. The cubic root of 5436531643 is about 1758.3580204066.

Adding to 5436531643 its reverse (3461356345), we get a palindrome (8897887988).

The spelling of 5436531643 in words is "five billion, four hundred thirty-six million, five hundred thirty-one thousand, six hundred forty-three".