47695728939 has 8 divisors (see below), whose sum is σ = 63651653520. Its totient is φ = 31768478496.

The previous prime is 47695728907. The next prime is 47695728947. The reversal of 47695728939 is 93982759674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47695728939 - 2⁵ = 47695728907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47695728239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7164652 + ... + 7171305.

It is an arithmetic number, because the mean of its divisors is an integer number (7956456690).

Almost surely, 2^47695728939 is an apocalyptic number.

47695728939 is a deficient number, since it is larger than the sum of its proper divisors (15955924581).

47695728939 is a wasteful number, since it uses less digits than its factorization.

47695728939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337069.

The product of its digits is 205752960, while the sum is 69.

The spelling of 47695728939 in words is "forty-seven billion, six hundred ninety-five million, seven hundred twenty-eight thousand, nine hundred thirty-nine".