47085094081 has 3 divisors (see below), whose sum is σ = 47085311073. Its totient is φ = 47084877090.

The previous prime is 47085094073. The next prime is 47085094099. The reversal of 47085094081 is 18049058074.

The square root of 47085094081 is 216991.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 47085094081 - 2³ = 47085094073 is a prime.

It is a super-2 number, since 2×47085094081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47085094051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 108496 + ... + 325486.

It is an arithmetic number, because the mean of its divisors is an integer number (15695103691).

Almost surely, 2^47085094081 is an apocalyptic number.

47085094081 is the 216991-st square number.

47085094081 is the 108496-th centered octagonal number.

It is an amenable number.

47085094081 is a deficient number, since it is larger than the sum of its proper divisors (216992).

47085094081 is an frugal number, since it uses more digits than its factorization.

47085094081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433982 (or 216991 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 47085094081 in words is "forty-seven billion, eighty-five million, ninety-four thousand, eighty-one".