48691385444 has 24 divisors (see below), whose sum is σ = 91793062200. Its totient is φ = 22465960704.

The previous prime is 48691385419. The next prime is 48691385453. The reversal of 48691385444 is 44458319684.

48691385444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5369958400 + 43321427044 = 73280^2 + 208138^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 48691385444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25232 + ... + 313080.

It is an arithmetic number, because the mean of its divisors is an integer number (3824710925).

Almost surely, 2^48691385444 is an apocalyptic number.

It is an amenable number.

48691385444 is a deficient number, since it is larger than the sum of its proper divisors (43101676756).

48691385444 is a wasteful number, since it uses less digits than its factorization.

48691385444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291119 (or 291117 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 56.

The spelling of 48691385444 in words is "forty-eight billion, six hundred ninety-one million, three hundred eighty-five thousand, four hundred forty-four".