6423847549 has 16 divisors (see below), whose sum is σ = 7365240576. Its totient is φ = 5488416000.

The previous prime is 6423847543. The next prime is 6423847553. The reversal of 6423847549 is 9457483246.

It is a cyclic number.

It is not a de Polignac number, because 6423847549 - 2⁵ = 6423847517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6423847496 and 6423847505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423847543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5348149 + ... + 5349349.

It is an arithmetic number, because the mean of its divisors is an integer number (460327536).

Almost surely, 2^6423847549 is an apocalyptic number.

It is an amenable number.

6423847549 is a deficient number, since it is larger than the sum of its proper divisors (941393027).

6423847549 is a wasteful number, since it uses less digits than its factorization.

6423847549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036.

The product of its digits is 5806080, while the sum is 52.

The square root of 6423847549 is about 80148.9085951892. The cubic root of 6423847549 is about 1858.9387275452.

The spelling of 6423847549 in words is "six billion, four hundred twenty-three million, eight hundred forty-seven thousand, five hundred forty-nine".