4461901643 has 2 divisors, whose sum is σ = 4461901644. Its totient is φ = 4461901642.

The previous prime is 4461901621. The next prime is 4461901679. The reversal of 4461901643 is 3461091644.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4461901643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4461901597 and 4461901606.

It is not a weakly prime, because it can be changed into another prime (4461909643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230950821 + 2230950822.

It is an arithmetic number, because the mean of its divisors is an integer number (2230950822).

Almost surely, 2^4461901643 is an apocalyptic number.

4461901643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4461901643 is an equidigital number, since it uses as much as digits as its factorization.

4461901643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 4461901643 is about 66797.4673397128. The cubic root of 4461901643 is about 1646.2912282613.

The spelling of 4461901643 in words is "four billion, four hundred sixty-one million, nine hundred one thousand, six hundred forty-three".