47045545889 has 2 divisors, whose sum is σ = 47045545890. Its totient is φ = 47045545888.

The previous prime is 47045545873. The next prime is 47045545913. The reversal of 47045545889 is 98854554074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29521081489 + 17524464400 = 171817^2 + 132380^2 .

It is a cyclic number.

It is not a de Polignac number, because 47045545889 - 2⁴ = 47045545873 is a prime.

It is not a weakly prime, because it can be changed into another prime (47045515889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23522772944 + 23522772945.

It is an arithmetic number, because the mean of its divisors is an integer number (23522772945).

Almost surely, 2^47045545889 is an apocalyptic number.

It is an amenable number.

47045545889 is a deficient number, since it is larger than the sum of its proper divisors (1).

47045545889 is an equidigital number, since it uses as much as digits as its factorization.

47045545889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256000, while the sum is 59.

The spelling of 47045545889 in words is "forty-seven billion, forty-five million, five hundred forty-five thousand, eight hundred eighty-nine".