6638073089 has 2 divisors, whose sum is σ = 6638073090. Its totient is φ = 6638073088.

The previous prime is 6638073083. The next prime is 6638073103. The reversal of 6638073089 is 9803708366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6562296064 + 75777025 = 81008^2 + 8705^2 .

It is a cyclic number.

It is not a de Polignac number, because 6638073089 - 2¹⁶ = 6638007553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6638073083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3319036544 + 3319036545.

It is an arithmetic number, because the mean of its divisors is an integer number (3319036545).

Almost surely, 2^6638073089 is an apocalyptic number.

It is an amenable number.

6638073089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6638073089 is an equidigital number, since it uses as much as digits as its factorization.

6638073089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 6638073089 is about 81474.3707493344. The cubic root of 6638073089 is about 1879.3774429706.

The spelling of 6638073089 in words is "six billion, six hundred thirty-eight million, seventy-three thousand, eighty-nine".