239310896857 has 2 divisors, whose sum is σ = 239310896858. Its totient is φ = 239310896856.

The previous prime is 239310896833. The next prime is 239310896887. The reversal of 239310896857 is 758698013932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135680985801 + 103629911056 = 368349^2 + 321916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239310896857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239310896795 and 239310896804.

It is not a weakly prime, because it can be changed into another prime (239310896887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119655448428 + 119655448429.

It is an arithmetic number, because the mean of its divisors is an integer number (119655448429).

Almost surely, 2^239310896857 is an apocalyptic number.

It is an amenable number.

239310896857 is a deficient number, since it is larger than the sum of its proper divisors (1).

239310896857 is an equidigital number, since it uses as much as digits as its factorization.

239310896857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 239310896857 in words is "two hundred thirty-nine billion, three hundred ten million, eight hundred ninety-six thousand, eight hundred fifty-seven".