47362318081 has 4 divisors (see below), whose sum is σ = 51005573332. Its totient is φ = 43719062832.

The previous prime is 47362318063. The next prime is 47362318097. The reversal of 47362318081 is 18081326374.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32055679681 + 15306638400 = 179041^2 + 123720^2 .

It is a cyclic number.

It is not a de Polignac number, because 47362318081 - 2¹⁹ = 47361793793 is a prime.

It is a super-2 number, since 2×47362318081² (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 (47362318181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821627606 + ... + 1821627631.

It is an arithmetic number, because the mean of its divisors is an integer number (12751393333).

Almost surely, 2^47362318081 is an apocalyptic number.

It is an amenable number.

47362318081 is a deficient number, since it is larger than the sum of its proper divisors (3643255251).

47362318081 is a wasteful number, since it uses less digits than its factorization.

47362318081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643255250.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 47362318081 in words is "forty-seven billion, three hundred sixty-two million, three hundred eighteen thousand, eighty-one".