47219977727 has 4 divisors (see below), whose sum is σ = 50852283720. Its totient is φ = 43587671736.

The previous prime is 47219977711. The next prime is 47219977741. The reversal of 47219977727 is 72777991274.

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

It is a cyclic number.

It is not a de Polignac number, because 47219977727 - 2⁴ = 47219977711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47219977727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47219977027) 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, 1816152977 + ... + 1816153002.

It is an arithmetic number, because the mean of its divisors is an integer number (12713070930).

Almost surely, 2^47219977727 is an apocalyptic number.

47219977727 is a deficient number, since it is larger than the sum of its proper divisors (3632305993).

47219977727 is a wasteful number, since it uses less digits than its factorization.

47219977727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632305992.

The product of its digits is 21781872, while the sum is 62.

The spelling of 47219977727 in words is "forty-seven billion, two hundred nineteen million, nine hundred seventy-seven thousand, seven hundred twenty-seven".