6428262857 has 8 divisors (see below), whose sum is σ = 6526952640. Its totient is φ = 6330270960.

The previous prime is 6428262851. The next prime is 6428262871. The reversal of 6428262857 is 7582628246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6428262857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6428262851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155894 + ... + 192767.

It is an arithmetic number, because the mean of its divisors is an integer number (815869080).

Almost surely, 2^6428262857 is an apocalyptic number.

It is an amenable number.

6428262857 is a deficient number, since it is larger than the sum of its proper divisors (98689783).

6428262857 is a wasteful number, since it uses less digits than its factorization.

6428262857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348943.

The product of its digits is 2580480, while the sum is 50.

The square root of 6428262857 is about 80176.4482688027. The cubic root of 6428262857 is about 1859.3645319250.

The spelling of 6428262857 in words is "six billion, four hundred twenty-eight million, two hundred sixty-two thousand, eight hundred fifty-seven".