3903655680 has 360 divisors, whose sum is σ = 14584201632. Its totient is φ = 995106816.

The previous prime is 3903655673. The next prime is 3903655699. The reversal of 3903655680 is 865563093.

3903655680 is a `hidden beast` number, since 3 + 90 + 3 + 6 + 556 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2383822 + ... + 2385458.

Almost surely, 2^3903655680 is an apocalyptic number.

3903655680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3903655680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7292100816).

3903655680 is an abundant number, since it is smaller than the sum of its proper divisors (10680545952).

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

3903655680 is a wasteful number, since it uses less digits than its factorization.

3903655680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 3903655680 is about 62479.2419928411. The cubic root of 3903655680 is about 1574.5525803939.

The spelling of 3903655680 in words is "three billion, nine hundred three million, six hundred fifty-five thousand, six hundred eighty".