3313785856 has 44 divisors (see below), whose sum is σ = 6658366968. Its totient is φ = 1648381952.

The previous prime is 3313785821. The next prime is 3313785857. The reversal of 3313785856 is 6585873133.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313785857) 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, 193515 + ... + 209941.

It is an arithmetic number, because the mean of its divisors is an integer number (151326522).

Almost surely, 2^3313785856 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 3313785856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3329183484).

3313785856 is an abundant number, since it is smaller than the sum of its proper divisors (3344581112).

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

3313785856 is a wasteful number, since it uses less digits than its factorization.

3313785856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16644 (or 16626 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 49.

The square root of 3313785856 is about 57565.4918853301. The cubic root of 3313785856 is about 1490.8758503865.

The spelling of 3313785856 in words is "three billion, three hundred thirteen million, seven hundred eighty-five thousand, eight hundred fifty-six".