2541658673 has 2 divisors, whose sum is σ = 2541658674. Its totient is φ = 2541658672.

The previous prime is 2541658667. The next prime is 2541658697. The reversal of 2541658673 is 3768561452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2417492224 + 124166449 = 49168^2 + 11143^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541658673 - 2⁴ = 2541658657 is a prime.

It is a super-2 number, since 2×2541658673² = 12920057620072241858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2541658643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270829336 + 1270829337.

It is an arithmetic number, because the mean of its divisors is an integer number (1270829337).

Almost surely, 2^2541658673 is an apocalyptic number.

It is an amenable number.

2541658673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541658673 is an equidigital number, since it uses as much as digits as its factorization.

2541658673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 47.

The square root of 2541658673 is about 50414.8655953777. The cubic root of 2541658673 is about 1364.7059209846.

The spelling of 2541658673 in words is "two billion, five hundred forty-one million, six hundred fifty-eight thousand, six hundred seventy-three".