47640634227 has 6 divisors (see below), whose sum is σ = 68814249452. Its totient is φ = 31760422812.

The previous prime is 47640634189. The next prime is 47640634241. The reversal of 47640634227 is 72243604674.

47640634227 is a `hidden beast` number, since 4 + 7 + 6 + 4 + 0 + 634 + 2 + 2 + 7 = 666.

It is not a de Polignac number, because 47640634227 - 2⁶ = 47640634163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47640634247) 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, 2646701893 + ... + 2646701910.

Almost surely, 2^47640634227 is an apocalyptic number.

47640634227 is a deficient number, since it is larger than the sum of its proper divisors (21173615225).

47640634227 is a wasteful number, since it uses less digits than its factorization.

47640634227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293403809 (or 5293403806 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 47640634227 in words is "forty-seven billion, six hundred forty million, six hundred thirty-four thousand, two hundred twenty-seven".