8678442239 has 2 divisors, whose sum is σ = 8678442240. Its totient is φ = 8678442238.

The previous prime is 8678442233. The next prime is 8678442287. The reversal of 8678442239 is 9322448768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8678442239 - 2²⁰ = 8677393663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8678442233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4339221119 + 4339221120.

It is an arithmetic number, because the mean of its divisors is an integer number (4339221120).

Almost surely, 2^8678442239 is an apocalyptic number.

8678442239 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678442239 is an equidigital number, since it uses as much as digits as its factorization.

8678442239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 53.

The square root of 8678442239 is about 93158.1571253962. The cubic root of 8678442239 is about 2055.0099346946.

The spelling of 8678442239 in words is "eight billion, six hundred seventy-eight million, four hundred forty-two thousand, two hundred thirty-nine".