47441928778 has 4 divisors (see below), whose sum is σ = 71162893170. Its totient is φ = 23720964388.

The previous prime is 47441928773. The next prime is 47441928797. The reversal of 47441928778 is 87782914474.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 39444740449 + 7997188329 = 198607^2 + 89427^2 .

It is not an unprimeable number, because it can be changed into a prime (47441928773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11860482193 + ... + 11860482196.

Almost surely, 2^47441928778 is an apocalyptic number.

47441928778 is a deficient number, since it is larger than the sum of its proper divisors (23720964392).

47441928778 is a wasteful number, since it uses less digits than its factorization.

47441928778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23720964391.

The product of its digits is 25288704, while the sum is 61.

The spelling of 47441928778 in words is "forty-seven billion, four hundred forty-one million, nine hundred twenty-eight thousand, seven hundred seventy-eight".