6858083840 has 80 divisors (see below), whose sum is σ = 16465946112. Its totient is φ = 2739462144.

The previous prime is 6858083737. The next prime is 6858083851. The reversal of 6858083840 is 483808586.

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550977 + ... + 2553663.

Almost surely, 2^6858083840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6858083840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8232973056).

6858083840 is an abundant number, since it is smaller than the sum of its proper divisors (9607862272).

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

6858083840 is an equidigital number, since it uses as much as digits as its factorization.

6858083840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3691 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

The square root of 6858083840 is about 82813.5486499643. The cubic root of 6858083840 is about 1899.9154015888.

The spelling of 6858083840 in words is "six billion, eight hundred fifty-eight million, eighty-three thousand, eight hundred forty".