51436168557347 has 4 divisors (see below), whose sum is σ = 58784192636976. Its totient is φ = 44088144477720.

The previous prime is 51436168557343. The next prime is 51436168557377. The reversal of 51436168557347 is 74375586163415.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51436168557347 - 2² = 51436168557343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51436168557343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3674012039804 + ... + 3674012039817.

It is an arithmetic number, because the mean of its divisors is an integer number (14696048159244).

Almost surely, 2^{51436168557347} is an apocalyptic number.

51436168557347 is a deficient number, since it is larger than the sum of its proper divisors (7348024079629).

51436168557347 is an equidigital number, since it uses as much as digits as its factorization.

51436168557347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348024079628.

The product of its digits is 254016000, while the sum is 65.

The spelling of 51436168557347 in words is "fifty-one trillion, four hundred thirty-six billion, one hundred sixty-eight million, five hundred fifty-seven thousand, three hundred forty-seven".