47909173799 has 2 divisors, whose sum is σ = 47909173800. Its totient is φ = 47909173798.

The previous prime is 47909173703. The next prime is 47909173801. The reversal of 47909173799 is 99737190974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47909173799 is a prime.

Together with 47909173801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47909173699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23954586899 + 23954586900.

It is an arithmetic number, because the mean of its divisors is an integer number (23954586900).

Almost surely, 2^47909173799 is an apocalyptic number.

47909173799 is a deficient number, since it is larger than the sum of its proper divisors (1).

47909173799 is an equidigital number, since it uses as much as digits as its factorization.

47909173799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27005076, while the sum is 65.

The spelling of 47909173799 in words is "forty-seven billion, nine hundred nine million, one hundred seventy-three thousand, seven hundred ninety-nine".