48447720645 has 8 divisors (see below), whose sum is σ = 77516353056. Its totient is φ = 25838784336.

The previous prime is 48447720617. The next prime is 48447720679. The reversal of 48447720645 is 54602774484.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48447720645 - 2¹¹ = 48447718597 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1614924007 + ... + 1614924036.

It is an arithmetic number, because the mean of its divisors is an integer number (9689544132).

Almost surely, 2^48447720645 is an apocalyptic number.

It is an amenable number.

48447720645 is a deficient number, since it is larger than the sum of its proper divisors (29068632411).

48447720645 is a wasteful number, since it uses less digits than its factorization.

48447720645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229848051.

The product of its (nonzero) digits is 6021120, while the sum is 51.

The spelling of 48447720645 in words is "forty-eight billion, four hundred forty-seven million, seven hundred twenty thousand, six hundred forty-five".