47951312847 has 16 divisors (see below), whose sum is σ = 66720369408. Its totient is φ = 30575128320.

The previous prime is 47951312821. The next prime is 47951312867. The reversal of 47951312847 is 74821315974.

It is not a de Polignac number, because 47951312847 - 2¹⁰ = 47951311823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47951312847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951312867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183647 + ... + 1223487.

It is an arithmetic number, because the mean of its divisors is an integer number (4170023088).

Almost surely, 2^47951312847 is an apocalyptic number.

47951312847 is a deficient number, since it is larger than the sum of its proper divisors (18769056561).

47951312847 is a wasteful number, since it uses less digits than its factorization.

47951312847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57310.

The product of its digits is 1693440, while the sum is 51.

The spelling of 47951312847 in words is "forty-seven billion, nine hundred fifty-one million, three hundred twelve thousand, eight hundred forty-seven".