3649337784947 has 2 divisors, whose sum is σ = 3649337784948. Its totient is φ = 3649337784946.

The previous prime is 3649337784943. The next prime is 3649337784997. The reversal of 3649337784947 is 7494877339463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3649337784947 - 2² = 3649337784943 is a prime.

It is not a weakly prime, because it can be changed into another prime (3649337784943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824668892473 + 1824668892474.

It is an arithmetic number, because the mean of its divisors is an integer number (1824668892474).

Almost surely, 2^{3649337784947} is an apocalyptic number.

3649337784947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649337784947 is an equidigital number, since it uses as much as digits as its factorization.

3649337784947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304433152, while the sum is 74.

The spelling of 3649337784947 in words is "three trillion, six hundred forty-nine billion, three hundred thirty-seven million, seven hundred eighty-four thousand, nine hundred forty-seven".