3681506347 has 2 divisors, whose sum is σ = 3681506348. Its totient is φ = 3681506346.

The previous prime is 3681506321. The next prime is 3681506359. The reversal of 3681506347 is 7436051863.

It is a strong prime.

It is an emirp because it is prime and its reverse (7436051863) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3681506347 is a prime.

It is not a weakly prime, because it can be changed into another prime (3681501347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840753173 + 1840753174.

It is an arithmetic number, because the mean of its divisors is an integer number (1840753174).

Almost surely, 2^3681506347 is an apocalyptic number.

3681506347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681506347 is an equidigital number, since it uses as much as digits as its factorization.

3681506347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 3681506347 is about 60675.4179796069. The cubic root of 3681506347 is about 1544.0991521950.

The spelling of 3681506347 in words is "three billion, six hundred eighty-one million, five hundred six thousand, three hundred forty-seven".