51853386859 has 16 divisors (see below), whose sum is σ = 55184025600. Its totient is φ = 48554216064.

The previous prime is 51853386853. The next prime is 51853386877. The reversal of 51853386859 is 95868335815.

51853386859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51853386859 - 2²³ = 51844998251 is a prime.

It is a super-3 number, since 3×51853386859³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51853386797 and 51853386806.

It is not an unprimeable number, because it can be changed into a prime (51853386853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6784162 + ... + 6791800.

It is an arithmetic number, because the mean of its divisors is an integer number (3449001600).

Almost surely, 2^51853386859 is an apocalyptic number.

51853386859 is a deficient number, since it is larger than the sum of its proper divisors (3330638741).

51853386859 is a wasteful number, since it uses less digits than its factorization.

51853386859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its digits is 31104000, while the sum is 61.

The spelling of 51853386859 in words is "fifty-one billion, eight hundred fifty-three million, three hundred eighty-six thousand, eight hundred fifty-nine".