6549229457 has 4 divisors (see below), whose sum is σ = 6628135920. Its totient is φ = 6470322996.

The previous prime is 6549229441. The next prime is 6549229459. The reversal of 6549229457 is 7549229456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6549229457 - 2⁴ = 6549229441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6549229399 and 6549229408.

It is not an unprimeable number, because it can be changed into a prime (6549229459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39453107 + ... + 39453272.

It is an arithmetic number, because the mean of its divisors is an integer number (1657033980).

Almost surely, 2^6549229457 is an apocalyptic number.

It is an amenable number.

6549229457 is a deficient number, since it is larger than the sum of its proper divisors (78906463).

6549229457 is an equidigital number, since it uses as much as digits as its factorization.

6549229457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78906462.

The product of its digits is 5443200, while the sum is 53.

The square root of 6549229457 is about 80927.3097106286. The cubic root of 6549229457 is about 1870.9552591239.

Subtracting 6549229457 from its reverse (7549229456), we obtain a palindrome (999999999).

It can be divided in two parts, 65492 and 29457, that added together give a palindrome (94949).

The spelling of 6549229457 in words is "six billion, five hundred forty-nine million, two hundred twenty-nine thousand, four hundred fifty-seven".