3618744947 has 2 divisors, whose sum is σ = 3618744948. Its totient is φ = 3618744946.

The previous prime is 3618744923. The next prime is 3618744949. The reversal of 3618744947 is 7494478163.

3618744947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3618744947 - 2¹⁴ = 3618728563 is a prime.

Together with 3618744949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3618744949) 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, 1809372473 + 1809372474.

It is an arithmetic number, because the mean of its divisors is an integer number (1809372474).

Almost surely, 2^3618744947 is an apocalyptic number.

3618744947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618744947 is an equidigital number, since it uses as much as digits as its factorization.

3618744947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 53.

The square root of 3618744947 is about 60156.0050784624. The cubic root of 3618744947 is about 1535.2743407207.

The spelling of 3618744947 in words is "three billion, six hundred eighteen million, seven hundred forty-four thousand, nine hundred forty-seven".