47986638609 has 32 divisors (see below), whose sum is σ = 78985360384. Its totient is φ = 25235115840.

The previous prime is 47986638571. The next prime is 47986638611. The reversal of 47986638609 is 90683668974.

It is not a de Polignac number, because 47986638609 - 2⁸ = 47986638353 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47986638609.

It is not an unprimeable number, because it can be changed into a prime (47986638109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175159 + ... + 355884.

It is an arithmetic number, because the mean of its divisors is an integer number (2468292512).

Almost surely, 2^47986638609 is an apocalyptic number.

It is an amenable number.

47986638609 is a deficient number, since it is larger than the sum of its proper divisors (30998721775).

47986638609 is a wasteful number, since it uses less digits than its factorization.

47986638609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531397.

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 47986638609 in words is "forty-seven billion, nine hundred eighty-six million, six hundred thirty-eight thousand, six hundred nine".