47934686691 has 6 divisors (see below), whose sum is σ = 69238991900. Its totient is φ = 31956457788.

The previous prime is 47934686689. The next prime is 47934686747. The reversal of 47934686691 is 19668643974.

It is not a de Polignac number, because 47934686691 - 2¹ = 47934686689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47934686651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2663038141 + ... + 2663038158.

Almost surely, 2^47934686691 is an apocalyptic number.

47934686691 is a deficient number, since it is larger than the sum of its proper divisors (21304305209).

47934686691 is a wasteful number, since it uses less digits than its factorization.

47934686691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326076305 (or 5326076302 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 47934686691 in words is "forty-seven billion, nine hundred thirty-four million, six hundred eighty-six thousand, six hundred ninety-one".