108257580721 has 2 divisors, whose sum is σ = 108257580722. Its totient is φ = 108257580720.

The previous prime is 108257580653. The next prime is 108257580763. The reversal of 108257580721 is 127085752801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88075400625 + 20182180096 = 296775^2 + 142064^2 .

It is a cyclic number.

It is not a de Polignac number, because 108257580721 - 2¹⁹ = 108257056433 is a prime.

It is not a weakly prime, because it can be changed into another prime (108257530721) 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, 54128790360 + 54128790361.

It is an arithmetic number, because the mean of its divisors is an integer number (54128790361).

Almost surely, 2^108257580721 is an apocalyptic number.

It is an amenable number.

108257580721 is a deficient number, since it is larger than the sum of its proper divisors (1).

108257580721 is an equidigital number, since it uses as much as digits as its factorization.

108257580721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 313600, while the sum is 46.

The spelling of 108257580721 in words is "one hundred eight billion, two hundred fifty-seven million, five hundred eighty thousand, seven hundred twenty-one".