39285259697 has 2 divisors, whose sum is σ = 39285259698. Its totient is φ = 39285259696.

The previous prime is 39285259619. The next prime is 39285259763. The reversal of 39285259697 is 79695258293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20645091856 + 18640167841 = 143684^2 + 136529^2 .

It is a cyclic number.

It is not a de Polignac number, because 39285259697 - 2⁸ = 39285259441 is a prime.

It is not a weakly prime, because it can be changed into another prime (39285259397) 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, 19642629848 + 19642629849.

It is an arithmetic number, because the mean of its divisors is an integer number (19642629849).

Almost surely, 2^39285259697 is an apocalyptic number.

It is an amenable number.

39285259697 is a deficient number, since it is larger than the sum of its proper divisors (1).

39285259697 is an equidigital number, since it uses as much as digits as its factorization.

39285259697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73483200, while the sum is 65.

It can be divided in two parts, 3928 and 5259697, that added together give a palindrome (5263625).

The spelling of 39285259697 in words is "thirty-nine billion, two hundred eighty-five million, two hundred fifty-nine thousand, six hundred ninety-seven".