51294934111 has 2 divisors, whose sum is σ = 51294934112. Its totient is φ = 51294934110.

The previous prime is 51294934001. The next prime is 51294934123. The reversal of 51294934111 is 11143949215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51294934111 - 2¹⁷ = 51294803039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51294934181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25647467055 + 25647467056.

It is an arithmetic number, because the mean of its divisors is an integer number (25647467056).

Almost surely, 2^51294934111 is an apocalyptic number.

51294934111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51294934111 is an equidigital number, since it uses as much as digits as its factorization.

51294934111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The spelling of 51294934111 in words is "fifty-one billion, two hundred ninety-four million, nine hundred thirty-four thousand, one hundred eleven".