94681128257 has 2 divisors, whose sum is σ = 94681128258. Its totient is φ = 94681128256.

The previous prime is 94681128253. The next prime is 94681128271. The reversal of 94681128257 is 75282118649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62212331776 + 32468796481 = 249424^2 + 180191^2 .

It is a cyclic number.

It is not a de Polignac number, because 94681128257 - 2² = 94681128253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 94681128199 and 94681128208.

It is not a weakly prime, because it can be changed into another prime (94681128253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47340564128 + 47340564129.

It is an arithmetic number, because the mean of its divisors is an integer number (47340564129).

Almost surely, 2^94681128257 is an apocalyptic number.

It is an amenable number.

94681128257 is a deficient number, since it is larger than the sum of its proper divisors (1).

94681128257 is an equidigital number, since it uses as much as digits as its factorization.

94681128257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 53.

The spelling of 94681128257 in words is "ninety-four billion, six hundred eighty-one million, one hundred twenty-eight thousand, two hundred fifty-seven".