51436168557346 has 8 divisors (see below), whose sum is σ = 77156690741100. Its totient is φ = 25717271643648.

The previous prime is 51436168557343. The next prime is 51436168557377. The reversal of 51436168557346 is 64375586163415.

It can be written as a sum of positive squares in 2 ways, for example, as 50773961592225 + 662206965121 = 7125585^2 + 813761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 406238391 + ... + 406364986.

Almost surely, 2^{51436168557346} is an apocalyptic number.

51436168557346 is a deficient number, since it is larger than the sum of its proper divisors (25720522183754).

51436168557346 is a wasteful number, since it uses less digits than its factorization.

51436168557346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812635028.

The product of its digits is 217728000, while the sum is 64.

The spelling of 51436168557346 in words is "fifty-one trillion, four hundred thirty-six billion, one hundred sixty-eight million, five hundred fifty-seven thousand, three hundred forty-six".