239931116647 has 2 divisors, whose sum is σ = 239931116648. Its totient is φ = 239931116646.

The previous prime is 239931116611. The next prime is 239931116701. The reversal of 239931116647 is 746611139932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 239931116647 - 2²⁷ = 239796898919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239931116594 and 239931116603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239931116147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119965558323 + 119965558324.

It is an arithmetic number, because the mean of its divisors is an integer number (119965558324).

Almost surely, 2^239931116647 is an apocalyptic number.

239931116647 is a deficient number, since it is larger than the sum of its proper divisors (1).

239931116647 is an equidigital number, since it uses as much as digits as its factorization.

239931116647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The spelling of 239931116647 in words is "two hundred thirty-nine billion, nine hundred thirty-one million, one hundred sixteen thousand, six hundred forty-seven".