6423546304447 has 4 divisors (see below), whose sum is σ = 6424182876456. Its totient is φ = 6422909732440.

The previous prime is 6423546304433. The next prime is 6423546304463. The reversal of 6423546304447 is 7444036453246.

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 6423546304447 - 2¹⁵ = 6423546271679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6423546304394 and 6423546304403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423546305447) 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, 318270868 + ... + 318291049.

It is an arithmetic number, because the mean of its divisors is an integer number (1606045719114).

Almost surely, 2^{6423546304447} is an apocalyptic number.

6423546304447 is a deficient number, since it is larger than the sum of its proper divisors (636572009).

6423546304447 is a wasteful number, since it uses less digits than its factorization.

6423546304447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636572008.

The product of its (nonzero) digits is 23224320, while the sum is 52.

The spelling of 6423546304447 in words is "six trillion, four hundred twenty-three billion, five hundred forty-six million, three hundred four thousand, four hundred forty-seven".