51237067129 has 2 divisors, whose sum is σ = 51237067130. Its totient is φ = 51237067128.

The previous prime is 51237067111. The next prime is 51237067157. The reversal of 51237067129 is 92176073215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37010064400 + 14227002729 = 192380^2 + 119277^2 .

It is a cyclic number.

It is not a de Polignac number, because 51237067129 - 2²⁵ = 51203512697 is a prime.

It is not a weakly prime, because it can be changed into another prime (51237067109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25618533564 + 25618533565.

It is an arithmetic number, because the mean of its divisors is an integer number (25618533565).

Almost surely, 2^51237067129 is an apocalyptic number.

It is an amenable number.

51237067129 is a deficient number, since it is larger than the sum of its proper divisors (1).

51237067129 is an equidigital number, since it uses as much as digits as its factorization.

51237067129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 51237067129 in words is "fifty-one billion, two hundred thirty-seven million, sixty-seven thousand, one hundred twenty-nine".