79852025641 has 2 divisors, whose sum is σ = 79852025642. Its totient is φ = 79852025640.

The previous prime is 79852025611. The next prime is 79852025653. The reversal of 79852025641 is 14652025897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77008470016 + 2843555625 = 277504^2 + 53325^2 .

It is an emirp because it is prime and its reverse (14652025897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79852025641 - 2¹¹ = 79852023593 is a prime.

It is not a weakly prime, because it can be changed into another prime (79852025611) 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, 39926012820 + 39926012821.

It is an arithmetic number, because the mean of its divisors is an integer number (39926012821).

Almost surely, 2^79852025641 is an apocalyptic number.

It is an amenable number.

79852025641 is a deficient number, since it is larger than the sum of its proper divisors (1).

79852025641 is an equidigital number, since it uses as much as digits as its factorization.

79852025641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 79852025641 in words is "seventy-nine billion, eight hundred fifty-two million, twenty-five thousand, six hundred forty-one".