48121720085 has 16 divisors (see below), whose sum is σ = 58553336496. Its totient is φ = 37959487488.

The previous prime is 48121720061. The next prime is 48121720093. The reversal of 48121720085 is 58002712184.

It can be written as a sum of positive squares in 8 ways, for example, as 990612676 + 47131107409 = 31474^2 + 217097^2 .

It is a cyclic number.

It is not a de Polignac number, because 48121720085 - 2⁸ = 48121719829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464557 + ... + 1497053.

It is an arithmetic number, because the mean of its divisors is an integer number (3659583531).

Almost surely, 2^48121720085 is an apocalyptic number.

It is an amenable number.

48121720085 is a deficient number, since it is larger than the sum of its proper divisors (10431616411).

48121720085 is a wasteful number, since it uses less digits than its factorization.

48121720085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36632.

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 48121720085 in words is "forty-eight billion, one hundred twenty-one million, seven hundred twenty thousand, eighty-five".