51086353326681 has 8 divisors (see below), whose sum is σ = 68115257331264. Its totient is φ = 34057509103280.

The previous prime is 51086353326641. The next prime is 51086353326683. The reversal of 51086353326681 is 18662335368015.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51086353326681 - 2¹⁴ = 51086353310297 is a prime.

It is a super-2 number, since 2×51086353326681² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51086353326683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12911805 + ... + 16397786.

It is an arithmetic number, because the mean of its divisors is an integer number (8514407166408).

Almost surely, 2^{51086353326681} is an apocalyptic number.

It is an amenable number.

51086353326681 is a deficient number, since it is larger than the sum of its proper divisors (17028904004583).

51086353326681 is a wasteful number, since it uses less digits than its factorization.

51086353326681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29890591.

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 51086353326681 in words is "fifty-one trillion, eighty-six billion, three hundred fifty-three million, three hundred twenty-six thousand, six hundred eighty-one".