3649337784997 has 2 divisors, whose sum is σ = 3649337784998. Its totient is φ = 3649337784996.

The previous prime is 3649337784947. The next prime is 3649337785013. The reversal of 3649337784997 is 7994877339463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2545894683396 + 1103443101601 = 1595586^2 + 1050449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3649337784997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649337784947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824668892498 + 1824668892499.

It is an arithmetic number, because the mean of its divisors is an integer number (1824668892499).

Almost surely, 2^{3649337784997} is an apocalyptic number.

It is an amenable number.

3649337784997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649337784997 is an equidigital number, since it uses as much as digits as its factorization.

3649337784997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184974592, while the sum is 79.

The spelling of 3649337784997 in words is "three trillion, six hundred forty-nine billion, three hundred thirty-seven million, seven hundred eighty-four thousand, nine hundred ninety-seven".