51436541857339 has 2 divisors, whose sum is σ = 51436541857340. Its totient is φ = 51436541857338.

The previous prime is 51436541857331. The next prime is 51436541857391. The reversal of 51436541857339 is 93375814563415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51436541857339 - 2³ = 51436541857331 is a prime.

It is not a weakly prime, because it can be changed into another prime (51436541857331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718270928669 + 25718270928670.

It is an arithmetic number, because the mean of its divisors is an integer number (25718270928670).

Almost surely, 2^{51436541857339} is an apocalyptic number.

51436541857339 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436541857339 is an equidigital number, since it uses as much as digits as its factorization.

51436541857339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296000, while the sum is 64.

The spelling of 51436541857339 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred forty-one million, eight hundred fifty-seven thousand, three hundred thirty-nine".