6428260689443 has 4 divisors (see below), whose sum is σ = 6431428883040. Its totient is φ = 6425092495848.

The previous prime is 6428260689407. The next prime is 6428260689479. The reversal of 6428260689443 is 3449860628246.

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

It is an interprime number because it is at equal distance from previous prime (6428260689407) and next prime (6428260689479).

It is a cyclic number.

It is not a de Polignac number, because 6428260689443 - 2²² = 6428256495139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6428260686443) 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, 1584093755 + ... + 1584097812.

It is an arithmetic number, because the mean of its divisors is an integer number (1607857220760).

Almost surely, 2^{6428260689443} is an apocalyptic number.

6428260689443 is a deficient number, since it is larger than the sum of its proper divisors (3168193597).

6428260689443 is a wasteful number, since it uses less digits than its factorization.

6428260689443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168193596.

The product of its (nonzero) digits is 95551488, while the sum is 62.

The spelling of 6428260689443 in words is "six trillion, four hundred twenty-eight billion, two hundred sixty million, six hundred eighty-nine thousand, four hundred forty-three".