47836636947 has 36 divisors (see below), whose sum is σ = 77716350712. Its totient is φ = 28317643200.

The previous prime is 47836636907. The next prime is 47836636949. The reversal of 47836636947 is 74963663874.

47836636947 is a `hidden beast` number, since 478 + 3 + 6 + 63 + 69 + 47 = 666.

It is not a de Polignac number, because 47836636947 - 2¹¹ = 47836634899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47836636949) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 463954 + ... + 557607.

Almost surely, 2^47836636947 is an apocalyptic number.

47836636947 is a deficient number, since it is larger than the sum of its proper divisors (29879713765).

47836636947 is a wasteful number, since it uses less digits than its factorization.

47836636947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021632 (or 1021618 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 63.

The spelling of 47836636947 in words is "forty-seven billion, eight hundred thirty-six million, six hundred thirty-six thousand, nine hundred forty-seven".