51104066087 has 6 divisors (see below), whose sum is σ = 51577224048. Its totient is φ = 50635209672.

The previous prime is 51104066077. The next prime is 51104066099. The reversal of 51104066087 is 78066040115.

It is not a de Polignac number, because 51104066087 - 2¹⁰ = 51104065063 is a prime.

It is a super-2 number, since 2×51104066087² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51104066087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51104066077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2138783 + ... + 2162544.

It is an arithmetic number, because the mean of its divisors is an integer number (8596204008).

Almost surely, 2^51104066087 is an apocalyptic number.

51104066087 is a deficient number, since it is larger than the sum of its proper divisors (473157961).

51104066087 is an equidigital number, since it uses as much as digits as its factorization.

51104066087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301545 (or 4301436 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 51104066087 in words is "fifty-one billion, one hundred four million, sixty-six thousand, eighty-seven".