47040707721 has 16 divisors (see below), whose sum is σ = 73348081664. Its totient is φ = 26255278224.

The previous prime is 47040707711. The next prime is 47040707771. The reversal of 47040707721 is 12770704074.

It is not a de Polignac number, because 47040707721 - 2⁵ = 47040707689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47040707721.

It is not an unprimeable number, because it can be changed into a prime (47040707711) 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, 26046001 + ... + 26047806.

It is an arithmetic number, because the mean of its divisors is an integer number (4584255104).

Almost surely, 2^47040707721 is an apocalyptic number.

It is an amenable number.

47040707721 is a deficient number, since it is larger than the sum of its proper divisors (26307373943).

47040707721 is a wasteful number, since it uses less digits than its factorization.

47040707721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52093860.

The product of its (nonzero) digits is 76832, while the sum is 39.

The spelling of 47040707721 in words is "forty-seven billion, forty million, seven hundred seven thousand, seven hundred twenty-one".