47288718777 has 4 divisors (see below), whose sum is σ = 63051625040. Its totient is φ = 31525812516.

The previous prime is 47288718733. The next prime is 47288718787. The reversal of 47288718777 is 77781788274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47288718777 - 2¹⁰ = 47288717753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47288718787) 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, 7881453127 + ... + 7881453132.

It is an arithmetic number, because the mean of its divisors is an integer number (15762906260).

Almost surely, 2^47288718777 is an apocalyptic number.

It is an amenable number.

47288718777 is a deficient number, since it is larger than the sum of its proper divisors (15762906263).

47288718777 is a wasteful number, since it uses less digits than its factorization.

47288718777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15762906262.

The product of its digits is 68841472, while the sum is 66.

The spelling of 47288718777 in words is "forty-seven billion, two hundred eighty-eight million, seven hundred eighteen thousand, seven hundred seventy-seven".