6256646647 has 8 divisors (see below), whose sum is σ = 6290380800. Its totient is φ = 6222991320.

The previous prime is 6256646623. The next prime is 6256646677. The reversal of 6256646647 is 7466466526.

6256646647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6256646647 - 2¹¹ = 6256644599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6256646594 and 6256646603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6256646677) 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, 143058 + ... + 181600.

It is an arithmetic number, because the mean of its divisors is an integer number (786297600).

Almost surely, 2^6256646647 is an apocalyptic number.

6256646647 is a deficient number, since it is larger than the sum of its proper divisors (33734153).

6256646647 is a wasteful number, since it uses less digits than its factorization.

6256646647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39413.

The product of its digits is 8709120, while the sum is 52.

The square root of 6256646647 is about 79098.9674205675. The cubic root of 6256646647 is about 1842.6684901704.

The spelling of 6256646647 in words is "six billion, two hundred fifty-six million, six hundred forty-six thousand, six hundred forty-seven".