51794951111 has 2 divisors, whose sum is σ = 51794951112. Its totient is φ = 51794951110.

The previous prime is 51794951077. The next prime is 51794951123. The reversal of 51794951111 is 11115949715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51794951111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51794951141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25897475555 + 25897475556.

It is an arithmetic number, because the mean of its divisors is an integer number (25897475556).

Almost surely, 2^51794951111 is an apocalyptic number.

51794951111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51794951111 is an equidigital number, since it uses as much as digits as its factorization.

51794951111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 44.

The spelling of 51794951111 in words is "fifty-one billion, seven hundred ninety-four million, nine hundred fifty-one thousand, one hundred eleven".