47723444432773 has 4 divisors (see below), whose sum is σ = 47725900246188. Its totient is φ = 47720988619360.

The previous prime is 47723444432761. The next prime is 47723444432809. The reversal of 47723444432773 is 37723444432774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9265065436449 + 38458378996324 = 3043857^2 + 6201482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47723444432773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47723444432273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227877558 + ... + 1227916423.

It is an arithmetic number, because the mean of its divisors is an integer number (11931475061547).

Almost surely, 2^{47723444432773} is an apocalyptic number.

It is an amenable number.

47723444432773 is a deficient number, since it is larger than the sum of its proper divisors (2455813415).

47723444432773 is a wasteful number, since it uses less digits than its factorization.

47723444432773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455813414.

The product of its digits is 265531392, while the sum is 61.

Subtracting from 47723444432773 its reverse (37723444432774), we obtain a palindrome (9999999999999).

The spelling of 47723444432773 in words is "forty-seven trillion, seven hundred twenty-three billion, four hundred forty-four million, four hundred thirty-two thousand, seven hundred seventy-three".