47848664637 has 12 divisors (see below), whose sum is σ = 71498005020. Its totient is φ = 30799140288.

The previous prime is 47848664623. The next prime is 47848664681. The reversal of 47848664637 is 73646684874.

It is a happy number.

47848664637 is a `hidden beast` number, since 4 + 78 + 48 + 66 + 463 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13722013881 + 34126650756 = 117141^2 + 184734^2 .

It is not a de Polignac number, because 47848664637 - 2¹⁹ = 47848140349 is a prime.

It is a super-4 number, since 4×47848664637⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47848564637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91663848 + ... + 91664369.

It is an arithmetic number, because the mean of its divisors is an integer number (5958167085).

Almost surely, 2^47848664637 is an apocalyptic number.

It is an amenable number.

47848664637 is a deficient number, since it is larger than the sum of its proper divisors (23649340383).

47848664637 is a wasteful number, since it uses less digits than its factorization.

47848664637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183328252 (or 183328249 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 63.

The spelling of 47848664637 in words is "forty-seven billion, eight hundred forty-eight million, six hundred sixty-four thousand, six hundred thirty-seven".