3901416643 has 4 divisors (see below), whose sum is σ = 3935942568. Its totient is φ = 3866890720.

The previous prime is 3901416637. The next prime is 3901416667. The reversal of 3901416643 is 3466141093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3901416643 - 2⁵ = 3901416611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3901416613) 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, 17262793 + ... + 17263018.

It is an arithmetic number, because the mean of its divisors is an integer number (983985642).

Almost surely, 2^3901416643 is an apocalyptic number.

3901416643 is a deficient number, since it is larger than the sum of its proper divisors (34525925).

3901416643 is a wasteful number, since it uses less digits than its factorization.

3901416643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34525924.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 3901416643 is about 62461.3211755883. The cubic root of 3901416643 is about 1574.2514817971.

The spelling of 3901416643 in words is "three billion, nine hundred one million, four hundred sixteen thousand, six hundred forty-three".