51651157127 has 2 divisors, whose sum is σ = 51651157128. Its totient is φ = 51651157126.

The previous prime is 51651157043. The next prime is 51651157169. The reversal of 51651157127 is 72175115615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51651157127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51651157027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25825578563 + 25825578564.

It is an arithmetic number, because the mean of its divisors is an integer number (25825578564).

Almost surely, 2^51651157127 is an apocalyptic number.

51651157127 is a deficient number, since it is larger than the sum of its proper divisors (1).

51651157127 is an equidigital number, since it uses as much as digits as its factorization.

51651157127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 41.

The spelling of 51651157127 in words is "fifty-one billion, six hundred fifty-one million, one hundred fifty-seven thousand, one hundred twenty-seven".