51086120018847 has 8 divisors (see below), whose sum is σ = 68115631476144. Its totient is φ = 34057010953728.

The previous prime is 51086120018819. The next prime is 51086120018861. The reversal of 51086120018847 is 74881002168015.

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

It is not a de Polignac number, because 51086120018847 - 2²⁷ = 51085985801119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51086120018847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51086120018807) 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, 100301688 + ... + 100809725.

It is an arithmetic number, because the mean of its divisors is an integer number (8514453934518).

Almost surely, 2^{51086120018847} is an apocalyptic number.

51086120018847 is a deficient number, since it is larger than the sum of its proper divisors (17029511457297).

51086120018847 is a wasteful number, since it uses less digits than its factorization.

51086120018847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201196089.

The product of its (nonzero) digits is 860160, while the sum is 51.

The spelling of 51086120018847 in words is "fifty-one trillion, eighty-six billion, one hundred twenty million, eighteen thousand, eight hundred forty-seven".