3680581643 has 8 divisors (see below), whose sum is σ = 3703047216. Its totient is φ = 3658176000.

The previous prime is 3680581627. The next prime is 3680581649. The reversal of 3680581643 is 3461850863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3680581643 - 2⁴ = 3680581627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3680581594 and 3680581603.

It is not an unprimeable number, because it can be changed into a prime (3680581649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111443 + ... + 140643.

It is an arithmetic number, because the mean of its divisors is an integer number (462880902).

Almost surely, 2^3680581643 is an apocalyptic number.

3680581643 is a deficient number, since it is larger than the sum of its proper divisors (22465573).

3680581643 is a wasteful number, since it uses less digits than its factorization.

3680581643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29965.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 3680581643 is about 60667.7974134549. The cubic root of 3680581643 is about 1543.9698614382.

The spelling of 3680581643 in words is "three billion, six hundred eighty million, five hundred eighty-one thousand, six hundred forty-three".