2478484649 has 2 divisors, whose sum is σ = 2478484650. Its totient is φ = 2478484648.

The previous prime is 2478484643. The next prime is 2478484661. The reversal of 2478484649 is 9464848742.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2300929024 + 177555625 = 47968^2 + 13325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2478484649 - 2²⁴ = 2461707433 is a prime.

It is a super-2 number, since 2×2478484649² = 12285772310657306402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478484594 and 2478484603.

It is not a weakly prime, because it can be changed into another prime (2478484643) 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, 1239242324 + 1239242325.

It is an arithmetic number, because the mean of its divisors is an integer number (1239242325).

Almost surely, 2^2478484649 is an apocalyptic number.

It is an amenable number.

2478484649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478484649 is an equidigital number, since it uses as much as digits as its factorization.

2478484649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12386304, while the sum is 56.

The square root of 2478484649 is about 49784.3815769564. The cubic root of 2478484649 is about 1353.3041422288.

The spelling of 2478484649 in words is "two billion, four hundred seventy-eight million, four hundred eighty-four thousand, six hundred forty-nine".