47809832489 has 2 divisors, whose sum is σ = 47809832490. Its totient is φ = 47809832488.

The previous prime is 47809832471. The next prime is 47809832503. The reversal of 47809832489 is 98423890874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42450421225 + 5359411264 = 206035^2 + 73208^2 .

It is a cyclic number.

It is not a de Polignac number, because 47809832489 - 2³² = 43514865193 is a prime.

It is not a weakly prime, because it can be changed into another prime (47809834489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23904916244 + 23904916245.

It is an arithmetic number, because the mean of its divisors is an integer number (23904916245).

Almost surely, 2^47809832489 is an apocalyptic number.

It is an amenable number.

47809832489 is a deficient number, since it is larger than the sum of its proper divisors (1).

47809832489 is an equidigital number, since it uses as much as digits as its factorization.

47809832489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 47809832489 in words is "forty-seven billion, eight hundred nine million, eight hundred thirty-two thousand, four hundred eighty-nine".