47147106721 has 16 divisors (see below), whose sum is σ = 56148382080. Its totient is φ = 39022024320.

The previous prime is 47147106719. The next prime is 47147106763. The reversal of 47147106721 is 12760174174.

It is a cyclic number.

It is not a de Polignac number, because 47147106721 - 2¹ = 47147106719 is a prime.

It is a super-2 number, since 2×47147106721² (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 (47147106221) 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 15 ways as a sum of consecutive naturals, for example, 2247781 + ... + 2268658.

It is an arithmetic number, because the mean of its divisors is an integer number (3509273880).

Almost surely, 2^47147106721 is an apocalyptic number.

It is an amenable number.

47147106721 is a deficient number, since it is larger than the sum of its proper divisors (9001275359).

47147106721 is a wasteful number, since it uses less digits than its factorization.

47147106721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516536.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 47147106721 in words is "forty-seven billion, one hundred forty-seven million, one hundred six thousand, seven hundred twenty-one".