47794018879 has 2 divisors, whose sum is σ = 47794018880. Its totient is φ = 47794018878.

The previous prime is 47794018849. The next prime is 47794018889. The reversal of 47794018879 is 97881049774.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47794018879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47794018879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47794018849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23897009439 + 23897009440.

It is an arithmetic number, because the mean of its divisors is an integer number (23897009440).

Almost surely, 2^47794018879 is an apocalyptic number.

47794018879 is a deficient number, since it is larger than the sum of its proper divisors (1).

47794018879 is an equidigital number, since it uses as much as digits as its factorization.

47794018879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28449792, while the sum is 64.

The spelling of 47794018879 in words is "forty-seven billion, seven hundred ninety-four million, eighteen thousand, eight hundred seventy-nine".