2478258049 has 2 divisors, whose sum is σ = 2478258050. Its totient is φ = 2478258048.

The previous prime is 2478258023. The next prime is 2478258059. The reversal of 2478258049 is 9408528742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2476853824 + 1404225 = 49768^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2478258049 - 2⁷ = 2478257921 is a prime.

It is a super-2 number, since 2×2478258049² = 12283525914866572802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478257993 and 2478258011.

It is not a weakly prime, because it can be changed into another prime (2478258059) 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, 1239129024 + 1239129025.

It is an arithmetic number, because the mean of its divisors is an integer number (1239129025).

Almost surely, 2^2478258049 is an apocalyptic number.

It is an amenable number.

2478258049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478258049 is an equidigital number, since it uses as much as digits as its factorization.

2478258049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 2478258049 is about 49782.1057107873. The cubic root of 2478258049 is about 1353.2628982017.

The spelling of 2478258049 in words is "two billion, four hundred seventy-eight million, two hundred fifty-eight thousand, forty-nine".