239272731017 has 2 divisors, whose sum is σ = 239272731018. Its totient is φ = 239272731016.

The previous prime is 239272731011. The next prime is 239272731077. The reversal of 239272731017 is 710137272932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223694945296 + 15577785721 = 472964^2 + 124811^2 .

It is a cyclic number.

It is not a de Polignac number, because 239272731017 - 2⁶ = 239272730953 is a prime.

It is not a weakly prime, because it can be changed into another prime (239272731011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119636365508 + 119636365509.

It is an arithmetic number, because the mean of its divisors is an integer number (119636365509).

Almost surely, 2^239272731017 is an apocalyptic number.

It is an amenable number.

239272731017 is a deficient number, since it is larger than the sum of its proper divisors (1).

239272731017 is an equidigital number, since it uses as much as digits as its factorization.

239272731017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 44.

The spelling of 239272731017 in words is "two hundred thirty-nine billion, two hundred seventy-two million, seven hundred thirty-one thousand, seventeen".