125636338337 has 2 divisors, whose sum is σ = 125636338338. Its totient is φ = 125636338336.

The previous prime is 125636338327. The next prime is 125636338361. The reversal of 125636338337 is 733833636521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117076202896 + 8560135441 = 342164^2 + 92521^2 .

It is a cyclic number.

It is not a de Polignac number, because 125636338337 - 2³⁰ = 124562596513 is a prime.

It is not a weakly prime, because it can be changed into another prime (125636338327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62818169168 + 62818169169.

It is an arithmetic number, because the mean of its divisors is an integer number (62818169169).

Almost surely, 2^125636338337 is an apocalyptic number.

It is an amenable number.

125636338337 is a deficient number, since it is larger than the sum of its proper divisors (1).

125636338337 is an equidigital number, since it uses as much as digits as its factorization.

125636338337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 50.

The spelling of 125636338337 in words is "one hundred twenty-five billion, six hundred thirty-six million, three hundred thirty-eight thousand, three hundred thirty-seven".