2489817677 has 2 divisors, whose sum is σ = 2489817678. Its totient is φ = 2489817676.

The previous prime is 2489817667. The next prime is 2489817683. The reversal of 2489817677 is 7767189842.

2489817677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2329896361 + 159921316 = 48269^2 + 12646^2 .

It is a cyclic number.

It is not a de Polignac number, because 2489817677 - 2⁶ = 2489817613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2489817647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244908838 + 1244908839.

It is an arithmetic number, because the mean of its divisors is an integer number (1244908839).

Almost surely, 2^2489817677 is an apocalyptic number.

It is an amenable number.

2489817677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489817677 is an equidigital number, since it uses as much as digits as its factorization.

2489817677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 59.

The square root of 2489817677 is about 49898.0728786193. The cubic root of 2489817677 is about 1355.3636958929.

The spelling of 2489817677 in words is "two billion, four hundred eighty-nine million, eight hundred seventeen thousand, six hundred seventy-seven".