47667433889 has 2 divisors, whose sum is σ = 47667433890. Its totient is φ = 47667433888.

The previous prime is 47667433861. The next prime is 47667433927. The reversal of 47667433889 is 98833476674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47571099664 + 96334225 = 218108^2 + 9815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47667433889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47667433789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23833716944 + 23833716945.

It is an arithmetic number, because the mean of its divisors is an integer number (23833716945).

Almost surely, 2^47667433889 is an apocalyptic number.

It is an amenable number.

47667433889 is a deficient number, since it is larger than the sum of its proper divisors (1).

47667433889 is an equidigital number, since it uses as much as digits as its factorization.

47667433889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146313216, while the sum is 65.

The spelling of 47667433889 in words is "forty-seven billion, six hundred sixty-seven million, four hundred thirty-three thousand, eight hundred eighty-nine".