47073275721 has 12 divisors (see below), whose sum is σ = 68071922100. Its totient is φ = 31346557440.

The previous prime is 47073275707. The next prime is 47073275741. The reversal of 47073275721 is 12757237074.

47073275721 is a `hidden beast` number, since 4 + 7 + 0 + 73 + 2 + 7 + 572 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4174581321 + 42898694400 = 64611^2 + 207120^2 .

It is not a de Polignac number, because 47073275721 - 2¹⁰ = 47073274697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47073275701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2960496 + ... + 2976353.

It is an arithmetic number, because the mean of its divisors is an integer number (5672660175).

Almost surely, 2^47073275721 is an apocalyptic number.

It is an amenable number.

47073275721 is a deficient number, since it is larger than the sum of its proper divisors (20998646379).

47073275721 is a wasteful number, since it uses less digits than its factorization.

47073275721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937736 (or 5937733 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 47073275721 in words is "forty-seven billion, seventy-three million, two hundred seventy-five thousand, seven hundred twenty-one".