47162374561 has 3 divisors (see below), whose sum is σ = 47162591731. Its totient is φ = 47162157392.

The previous prime is 47162374547. The next prime is 47162374573. The reversal of 47162374561 is 16547326174.

The square root of 47162374561 is 217169.

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 can be written as a sum of positive squares in only one way, i.e., 16200452961 + 30961921600 = 127281^2 + 175960^2 .

It is not a de Polignac number, because 47162374561 - 2¹¹ = 47162372513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47162374531) 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, 108585 + ... + 325753.

Almost surely, 2^47162374561 is an apocalyptic number.

47162374561 is the 217169-th square number.

47162374561 is the 108585-th centered octagonal number.

It is an amenable number.

47162374561 is a deficient number, since it is larger than the sum of its proper divisors (217170).

47162374561 is an frugal number, since it uses more digits than its factorization.

47162374561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434338 (or 217169 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The spelling of 47162374561 in words is "forty-seven billion, one hundred sixty-two million, three hundred seventy-four thousand, five hundred sixty-one".