2998317561 has 8 divisors (see below), whose sum is σ = 4012958400. Its totient is φ = 1991277552.

The previous prime is 2998317547. The next prime is 2998317563. The reversal of 2998317561 is 1657138992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2998317561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2998317563) 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 in 7 ways as a sum of consecutive naturals, for example, 1899286 + ... + 1900863.

It is an arithmetic number, because the mean of its divisors is an integer number (501619800).

Almost surely, 2^2998317561 is an apocalyptic number.

It is an amenable number.

2998317561 is a deficient number, since it is larger than the sum of its proper divisors (1014640839).

2998317561 is a wasteful number, since it uses less digits than its factorization.

2998317561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800415.

The product of its digits is 816480, while the sum is 51.

The square root of 2998317561 is about 54756.8951000694. The cubic root of 2998317561 is about 1441.9799091219.

The spelling of 2998317561 in words is "two billion, nine hundred ninety-eight million, three hundred seventeen thousand, five hundred sixty-one".