5611544643 has 4 divisors (see below), whose sum is σ = 7482059528. Its totient is φ = 3741029760.

The previous prime is 5611544641. The next prime is 5611544651. The reversal of 5611544643 is 3464451165.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5611544643 - 2¹ = 5611544641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5611544641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935257438 + ... + 935257443.

It is an arithmetic number, because the mean of its divisors is an integer number (1870514882).

Almost surely, 2^5611544643 is an apocalyptic number.

5611544643 is a deficient number, since it is larger than the sum of its proper divisors (1870514885).

5611544643 is a wasteful number, since it uses less digits than its factorization.

5611544643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870514884.

The product of its digits is 172800, while the sum is 39.

The square root of 5611544643 is about 74910.2439122981. The cubic root of 5611544643 is about 1777.0274676281.

The spelling of 5611544643 in words is "five billion, six hundred eleven million, five hundred forty-four thousand, six hundred forty-three".