47327564778 has 192 divisors, whose sum is σ = 112547635200. Its totient is φ = 13210179840.

The previous prime is 47327564777. The next prime is 47327564789. The reversal of 47327564778 is 87746572374.

47327564778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47327564773) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65099451 + ... + 65100177.

It is an arithmetic number, because the mean of its divisors is an integer number (586185600).

Almost surely, 2^47327564778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47327564778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56273817600).

47327564778 is an abundant number, since it is smaller than the sum of its proper divisors (65220070422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47327564778 is a wasteful number, since it uses less digits than its factorization.

47327564778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 904 counting only the distinct ones).

The product of its digits is 55319040, while the sum is 60.

The spelling of 47327564778 in words is "forty-seven billion, three hundred twenty-seven million, five hundred sixty-four thousand, seven hundred seventy-eight".