2587167449 has 2 divisors, whose sum is σ = 2587167450. Its totient is φ = 2587167448.

The previous prime is 2587167421. The next prime is 2587167467. The reversal of 2587167449 is 9447617852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1621511824 + 965655625 = 40268^2 + 31075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587167449 - 2¹² = 2587163353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2587167449.

It is not a weakly prime, because it can be changed into another prime (2587167469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293583724 + 1293583725.

It is an arithmetic number, because the mean of its divisors is an integer number (1293583725).

Almost surely, 2^2587167449 is an apocalyptic number.

It is an amenable number.

2587167449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587167449 is an equidigital number, since it uses as much as digits as its factorization.

2587167449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 53.

The square root of 2587167449 is about 50864.2059704071. The cubic root of 2587167449 is about 1372.8028732512.

The spelling of 2587167449 in words is "two billion, five hundred eighty-seven million, one hundred sixty-seven thousand, four hundred forty-nine".