47805581776 has 20 divisors (see below), whose sum is σ = 92640154852. Its totient is φ = 23898445056.

The previous prime is 47805581749. The next prime is 47805581797. The reversal of 47805581776 is 67718550874.

It can be written as a sum of positive squares in 2 ways, for example, as 46278335376 + 1527246400 = 215124^2 + 39080^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47805581776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179925 + ... + 357748.

Almost surely, 2^47805581776 is an apocalyptic number.

It is an amenable number.

47805581776 is a deficient number, since it is larger than the sum of its proper divisors (44834573076).

47805581776 is a wasteful number, since it uses less digits than its factorization.

47805581776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543238 (or 543232 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 58.

The spelling of 47805581776 in words is "forty-seven billion, eight hundred five million, five hundred eighty-one thousand, seven hundred seventy-six".