47945658673 has 10 divisors (see below), whose sum is σ = 52739913170. Its totient is φ = 43586949120.

The previous prime is 47945658643. The next prime is 47945658679. The reversal of 47945658673 is 37685654974.

It can be written as a sum of positive squares in only one way, i.e., 42461959969 + 5483698704 = 206063^2 + 74052^2 .

It is not a de Polignac number, because 47945658673 - 2²⁹ = 47408787761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47945658679) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1622736 + ... + 1652017.

It is an arithmetic number, because the mean of its divisors is an integer number (5273991317).

Almost surely, 2^47945658673 is an apocalyptic number.

It is an amenable number.

47945658673 is a deficient number, since it is larger than the sum of its proper divisors (4794254497).

47945658673 is an frugal number, since it uses more digits than its factorization.

47945658673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274797 (or 3274764 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 64.

The spelling of 47945658673 in words is "forty-seven billion, nine hundred forty-five million, six hundred fifty-eight thousand, six hundred seventy-three".