2489628161 has 2 divisors, whose sum is σ = 2489628162. Its totient is φ = 2489628160.

The previous prime is 2489628131. The next prime is 2489628173. The reversal of 2489628161 is 1618269842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2448270400 + 41357761 = 49480^2 + 6431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2489628161 - 2¹⁰ = 2489627137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2489628131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244814080 + 1244814081.

It is an arithmetic number, because the mean of its divisors is an integer number (1244814081).

Almost surely, 2^2489628161 is an apocalyptic number.

It is an amenable number.

2489628161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489628161 is an equidigital number, since it uses as much as digits as its factorization.

2489628161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 47.

The square root of 2489628161 is about 49896.1738112252. The cubic root of 2489628161 is about 1355.3293065444.

The spelling of 2489628161 in words is "two billion, four hundred eighty-nine million, six hundred twenty-eight thousand, one hundred sixty-one".