2881641979 has 2 divisors, whose sum is σ = 2881641980. Its totient is φ = 2881641978.

The previous prime is 2881641941. The next prime is 2881642003. The reversal of 2881641979 is 9791461882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2881641979 - 2⁹ = 2881641467 is a prime.

It is not a weakly prime, because it can be changed into another prime (2881641929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440820989 + 1440820990.

It is an arithmetic number, because the mean of its divisors is an integer number (1440820990).

Almost surely, 2^2881641979 is an apocalyptic number.

2881641979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881641979 is an equidigital number, since it uses as much as digits as its factorization.

2881641979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 55.

The square root of 2881641979 is about 53680.9275162045. The cubic root of 2881641979 is about 1423.0276567285.

The spelling of 2881641979 in words is "two billion, eight hundred eighty-one million, six hundred forty-one thousand, nine hundred seventy-nine".