6256689820 has 48 divisors (see below), whose sum is σ = 13430390400. Its totient is φ = 2447276544.

The previous prime is 6256689787. The next prime is 6256689833. The reversal of 6256689820 is 289866526.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1453912 + ... + 1458208.

It is an arithmetic number, because the mean of its divisors is an integer number (279799800).

Almost surely, 2^6256689820 is an apocalyptic number.

It is an amenable number.

6256689820 is an abundant number, since it is smaller than the sum of its proper divisors (7173700580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6256689820 is a wasteful number, since it uses less digits than its factorization.

6256689820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The square root of 6256689820 is about 79099.2403250499. The cubic root of 6256689820 is about 1842.6727285081.

The spelling of 6256689820 in words is "six billion, two hundred fifty-six million, six hundred eighty-nine thousand, eight hundred twenty".