51549734143 has 2 divisors, whose sum is σ = 51549734144. Its totient is φ = 51549734142.

The previous prime is 51549734123. The next prime is 51549734167. The reversal of 51549734143 is 34143794515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51549734143 - 2¹⁷ = 51549603071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51549734093 and 51549734102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51549734123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25774867071 + 25774867072.

It is an arithmetic number, because the mean of its divisors is an integer number (25774867072).

Almost surely, 2^51549734143 is an apocalyptic number.

51549734143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51549734143 is an equidigital number, since it uses as much as digits as its factorization.

51549734143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The spelling of 51549734143 in words is "fifty-one billion, five hundred forty-nine million, seven hundred thirty-four thousand, one hundred forty-three".