2641161449 has 2 divisors, whose sum is σ = 2641161450. Its totient is φ = 2641161448.

The previous prime is 2641161403. The next prime is 2641161473. The reversal of 2641161449 is 9441611462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885296400 + 755865049 = 43420^2 + 27493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2641161449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2641161049) 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 as a sum of consecutive naturals, namely, 1320580724 + 1320580725.

It is an arithmetic number, because the mean of its divisors is an integer number (1320580725).

Almost surely, 2^2641161449 is an apocalyptic number.

It is an amenable number.

2641161449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641161449 is an equidigital number, since it uses as much as digits as its factorization.

2641161449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 2641161449 is about 51392.2314070911. The cubic root of 2641161449 is about 1382.2872956848.

The spelling of 2641161449 in words is "two billion, six hundred forty-one million, one hundred sixty-one thousand, four hundred forty-nine".