3681363943 has 4 divisors (see below), whose sum is σ = 3875119960. Its totient is φ = 3487607928.

The previous prime is 3681363937. The next prime is 3681363953. The reversal of 3681363943 is 3493631863.

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

It is not a de Polignac number, because 3681363943 - 2⁵ = 3681363911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3681363893 and 3681363902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681363953) 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, 96877980 + ... + 96878017.

It is an arithmetic number, because the mean of its divisors is an integer number (968779990).

Almost surely, 2^3681363943 is an apocalyptic number.

3681363943 is a deficient number, since it is larger than the sum of its proper divisors (193756017).

3681363943 is a wasteful number, since it uses less digits than its factorization.

3681363943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193756016.

The product of its digits is 839808, while the sum is 46.

The square root of 3681363943 is about 60674.2444781968. The cubic root of 3681363943 is about 1544.0792428870.

The spelling of 3681363943 in words is "three billion, six hundred eighty-one million, three hundred sixty-three thousand, nine hundred forty-three".