3680761856 has 48 divisors (see below), whose sum is σ = 7431606000. Its totient is φ = 1822408704.

The previous prime is 3680761849. The next prime is 3680761883. The reversal of 3680761856 is 6581670863.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202220 + ... + 219668.

It is an arithmetic number, because the mean of its divisors is an integer number (154825125).

Almost surely, 2^3680761856 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 3680761856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3715803000).

3680761856 is an abundant number, since it is smaller than the sum of its proper divisors (3750844144).

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

3680761856 is a wasteful number, since it uses less digits than its factorization.

3680761856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574 (or 17554 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 3680761856 is about 60669.2826395698. The cubic root of 3680761856 is about 1543.9950602543.

The spelling of 3680761856 in words is "three billion, six hundred eighty million, seven hundred sixty-one thousand, eight hundred fifty-six".