2489839637 has 2 divisors, whose sum is σ = 2489839638. Its totient is φ = 2489839636.

The previous prime is 2489839633. The next prime is 2489839657. The reversal of 2489839637 is 7369389842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2311109476 + 178730161 = 48074^2 + 13369^2 .

It is a cyclic number.

It is not a de Polignac number, because 2489839637 - 2² = 2489839633 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2489839633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244919818 + 1244919819.

It is an arithmetic number, because the mean of its divisors is an integer number (1244919819).

Almost surely, 2^2489839637 is an apocalyptic number.

It is an amenable number.

2489839637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489839637 is an equidigital number, since it uses as much as digits as its factorization.

2489839637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 59.

The square root of 2489839637 is about 49898.2929267124. The cubic root of 2489839637 is about 1355.3676806156.

The spelling of 2489839637 in words is "two billion, four hundred eighty-nine million, eight hundred thirty-nine thousand, six hundred thirty-seven".