51154845127 has 2 divisors, whose sum is σ = 51154845128. Its totient is φ = 51154845126.

The previous prime is 51154845103. The next prime is 51154845173. The reversal of 51154845127 is 72154845115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51154845127 - 2¹¹ = 51154843079 is a prime.

It is a super-2 number, since 2×51154845127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51154845527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25577422563 + 25577422564.

It is an arithmetic number, because the mean of its divisors is an integer number (25577422564).

Almost surely, 2^51154845127 is an apocalyptic number.

51154845127 is a deficient number, since it is larger than the sum of its proper divisors (1).

51154845127 is an equidigital number, since it uses as much as digits as its factorization.

51154845127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224000, while the sum is 43.

The spelling of 51154845127 in words is "fifty-one billion, one hundred fifty-four million, eight hundred forty-five thousand, one hundred twenty-seven".