331839996825577 has 2 divisors, whose sum is σ = 331839996825578. Its totient is φ = 331839996825576.

The previous prime is 331839996825527. The next prime is 331839996825611. The reversal of 331839996825577 is 775528699938133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236054216771136 + 95785780054441 = 15364056^2 + 9787021^2 .

It is an emirp because it is prime and its reverse (775528699938133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331839996825577 is a prime.

It is a super-2 number, since 2×331839996825577² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331839996825494 and 331839996825503.

It is not a weakly prime, because it can be changed into another prime (331839996825527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165919998412788 + 165919998412789.

It is an arithmetic number, because the mean of its divisors is an integer number (165919998412789).

Almost surely, 2^{331839996825577} is an apocalyptic number.

It is an amenable number.

331839996825577 is a deficient number, since it is larger than the sum of its proper divisors (1).

331839996825577 is an equidigital number, since it uses as much as digits as its factorization.

331839996825577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18517766400, while the sum is 85.

The spelling of 331839996825577 in words is "three hundred thirty-one trillion, eight hundred thirty-nine billion, nine hundred ninety-six million, eight hundred twenty-five thousand, five hundred seventy-seven".