2438624861 has 2 divisors, whose sum is σ = 2438624862. Its totient is φ = 2438624860.

The previous prime is 2438624843. The next prime is 2438624879. The reversal of 2438624861 is 1684268342.

It is a balanced prime because it is at equal distance from previous prime (2438624843) and next prime (2438624879).

It can be written as a sum of positive squares in only one way, i.e., 2172119236 + 266505625 = 46606^2 + 16325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438624861 - 2¹⁴ = 2438608477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2438624801) 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, 1219312430 + 1219312431.

It is an arithmetic number, because the mean of its divisors is an integer number (1219312431).

Almost surely, 2^2438624861 is an apocalyptic number.

It is an amenable number.

2438624861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438624861 is an equidigital number, since it uses as much as digits as its factorization.

2438624861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 44.

The square root of 2438624861 is about 49382.4347415151. The cubic root of 2438624861 is about 1346.0101422417.

The spelling of 2438624861 in words is "two billion, four hundred thirty-eight million, six hundred twenty-four thousand, eight hundred sixty-one".