2991101579 has 2 divisors, whose sum is σ = 2991101580. Its totient is φ = 2991101578.

The previous prime is 2991101551. The next prime is 2991101599. The reversal of 2991101579 is 9751011992.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2991101579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2991101599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495550789 + 1495550790.

It is an arithmetic number, because the mean of its divisors is an integer number (1495550790).

Almost surely, 2^2991101579 is an apocalyptic number.

2991101579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2991101579 is an equidigital number, since it uses as much as digits as its factorization.

2991101579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 44.

The square root of 2991101579 is about 54690.9643268429. The cubic root of 2991101579 is about 1440.8221865619.

The spelling of 2991101579 in words is "two billion, nine hundred ninety-one million, one hundred one thousand, five hundred seventy-nine".