51086518480168 has 16 divisors (see below), whose sum is σ = 95787435840660. Its totient is φ = 25543202256000.

The previous prime is 51086518480157. The next prime is 51086518480169. The reversal of 51086518480168 is 86108481568015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45595472963364 + 5491045516804 = 6752442^2 + 2343298^2 .

It is not an unprimeable number, because it can be changed into a prime (51086518480169) 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, 3184783 + ... + 10597918.

Almost surely, 2^{51086518480168} is an apocalyptic number.

It is an amenable number.

51086518480168 is a deficient number, since it is larger than the sum of its proper divisors (44700917360492).

51086518480168 is a wasteful number, since it uses less digits than its factorization.

51086518480168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246028 (or 14246024 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 61.

The spelling of 51086518480168 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, one hundred sixty-eight".