48447720644 has 12 divisors (see below), whose sum is σ = 85273590444. Its totient is φ = 24083837664.

The previous prime is 48447720617. The next prime is 48447720679. The reversal of 48447720644 is 44602774484.

48447720644 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 2 ways, for example, as 46362702400 + 2085018244 = 215320^2 + 45662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48447720592 and 48447720601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35004887 + ... + 35006270.

It is an arithmetic number, because the mean of its divisors is an integer number (7106132537).

Almost surely, 2^48447720644 is an apocalyptic number.

It is an amenable number.

48447720644 is a deficient number, since it is larger than the sum of its proper divisors (36825869800).

48447720644 is a wasteful number, since it uses less digits than its factorization.

48447720644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70011334 (or 70011332 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 50.

The spelling of 48447720644 in words is "forty-eight billion, four hundred forty-seven million, seven hundred twenty thousand, six hundred forty-four".