51344123329 has 2 divisors, whose sum is σ = 51344123330. Its totient is φ = 51344123328.

The previous prime is 51344123309. The next prime is 51344123387. The reversal of 51344123329 is 92332144315.

51344123329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47794704400 + 3549418929 = 218620^2 + 59577^2 .

It is a cyclic number.

It is not a de Polignac number, because 51344123329 - 2¹⁷ = 51343992257 is a prime.

It is not a weakly prime, because it can be changed into another prime (51344123309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672061664 + 25672061665.

It is an arithmetic number, because the mean of its divisors is an integer number (25672061665).

Almost surely, 2^51344123329 is an apocalyptic number.

It is an amenable number.

51344123329 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344123329 is an equidigital number, since it uses as much as digits as its factorization.

51344123329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The spelling of 51344123329 in words is "fifty-one billion, three hundred forty-four million, one hundred twenty-three thousand, three hundred twenty-nine".