2618371289 has 2 divisors, whose sum is σ = 2618371290. Its totient is φ = 2618371288.

The previous prime is 2618371279. The next prime is 2618371307. The reversal of 2618371289 is 9821738162.

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., 2257675225 + 360696064 = 47515^2 + 18992^2 .

It is a cyclic number.

It is not a de Polignac number, because 2618371289 - 2⁸ = 2618371033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2618371279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309185644 + 1309185645.

It is an arithmetic number, because the mean of its divisors is an integer number (1309185645).

Almost surely, 2^2618371289 is an apocalyptic number.

It is an amenable number.

2618371289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2618371289 is an equidigital number, since it uses as much as digits as its factorization.

2618371289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 2618371289 is about 51170.0233437508. The cubic root of 2618371289 is about 1378.2999595224.

The spelling of 2618371289 in words is "two billion, six hundred eighteen million, three hundred seventy-one thousand, two hundred eighty-nine".