47768321318 has 64 divisors (see below), whose sum is σ = 78515453952. Its totient is φ = 21711836160.

The previous prime is 47768321311. The next prime is 47768321323. The reversal of 47768321318 is 81312386774.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47768321311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28723355 + ... + 28725017.

It is an arithmetic number, because the mean of its divisors is an integer number (1226803968).

Almost surely, 2^47768321318 is an apocalyptic number.

47768321318 is a deficient number, since it is larger than the sum of its proper divisors (30747132634).

47768321318 is a wasteful number, since it uses less digits than its factorization.

47768321318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its digits is 1354752, while the sum is 50.

The spelling of 47768321318 in words is "forty-seven billion, seven hundred sixty-eight million, three hundred twenty-one thousand, three hundred eighteen".