5649091243 has 4 divisors (see below), whose sum is σ = 5661292768. Its totient is φ = 5636889720.

The previous prime is 5649091213. The next prime is 5649091277. The reversal of 5649091243 is 3421909465.

5649091243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5649091243 - 2⁹ = 5649090731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5649091243.

It is not an unprimeable number, because it can be changed into a prime (5649091213) 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, 6100068 + ... + 6100993.

It is an arithmetic number, because the mean of its divisors is an integer number (1415323192).

Almost surely, 2^5649091243 is an apocalyptic number.

5649091243 is a deficient number, since it is larger than the sum of its proper divisors (12201525).

5649091243 is a wasteful number, since it uses less digits than its factorization.

5649091243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201524.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 5649091243 is about 75160.4366871295. The cubic root of 5649091243 is about 1780.9819985459.

The spelling of 5649091243 in words is "five billion, six hundred forty-nine million, ninety-one thousand, two hundred forty-three".