47515716361 has 3 divisors (see below), whose sum is σ = 47515934343. Its totient is φ = 47515498380.

The previous prime is 47515716359. The next prime is 47515716379. The reversal of 47515716361 is 16361751574.

The square root of 47515716361 is 217981.

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., 730026361 + 46785690000 = 27019^2 + 216300^2 .

It is not a de Polignac number, because 47515716361 - 2¹ = 47515716359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47515716341) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 108991 + ... + 326971.

It is an arithmetic number, because the mean of its divisors is an integer number (15838644781).

Almost surely, 2^47515716361 is an apocalyptic number.

47515716361 is the 217981-st square number.

47515716361 is the 108991-st centered octagonal number.

It is an amenable number.

47515716361 is a deficient number, since it is larger than the sum of its proper divisors (217982).

47515716361 is an frugal number, since it uses more digits than its factorization.

47515716361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435962 (or 217981 counting only the distinct ones).

The product of its digits is 529200, while the sum is 46.

It can be divided in two parts, 47515 and 716361, that added together give a square (763876 = 874²).

The spelling of 47515716361 in words is "forty-seven billion, five hundred fifteen million, seven hundred sixteen thousand, three hundred sixty-one".