8049383561 has 2 divisors, whose sum is σ = 8049383562. Its totient is φ = 8049383560.

The previous prime is 8049383543. The next prime is 8049383593. The reversal of 8049383561 is 1653839408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7302727936 + 746655625 = 85456^2 + 27325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8049383561 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8049389561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4024691780 + 4024691781.

It is an arithmetic number, because the mean of its divisors is an integer number (4024691781).

Almost surely, 2^8049383561 is an apocalyptic number.

It is an amenable number.

8049383561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8049383561 is an equidigital number, since it uses as much as digits as its factorization.

8049383561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 8049383561 is about 89718.3568786232. The cubic root of 8049383561 is about 2004.1068578371.

The spelling of 8049383561 in words is "eight billion, forty-nine million, three hundred eighty-three thousand, five hundred sixty-one".