47145939859 has 2 divisors, whose sum is σ = 47145939860. Its totient is φ = 47145939858.

The previous prime is 47145939857. The next prime is 47145939913. The reversal of 47145939859 is 95893954174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47145939859 - 2¹ = 47145939857 is a prime.

Together with 47145939857, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47145939859.

It is not a weakly prime, because it can be changed into another prime (47145939857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23572969929 + 23572969930.

It is an arithmetic number, because the mean of its divisors is an integer number (23572969930).

Almost surely, 2^47145939859 is an apocalyptic number.

47145939859 is a deficient number, since it is larger than the sum of its proper divisors (1).

47145939859 is an equidigital number, since it uses as much as digits as its factorization.

47145939859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 64.

The spelling of 47145939859 in words is "forty-seven billion, one hundred forty-five million, nine hundred thirty-nine thousand, eight hundred fifty-nine".