51858168593 has 16 divisors (see below), whose sum is σ = 64662624384. Its totient is φ = 40403784960.

The previous prime is 51858168587. The next prime is 51858168613. The reversal of 51858168593 is 39586185815.

51858168593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51858168593 - 2¹⁴ = 51858152209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51858168533) 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, 629321 + ... + 706937.

It is an arithmetic number, because the mean of its divisors is an integer number (4041414024).

Almost surely, 2^51858168593 is an apocalyptic number.

It is an amenable number.

51858168593 is a deficient number, since it is larger than the sum of its proper divisors (12804455791).

51858168593 is a wasteful number, since it uses less digits than its factorization.

51858168593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86312.

The product of its digits is 10368000, while the sum is 59.

The spelling of 51858168593 in words is "fifty-one billion, eight hundred fifty-eight million, one hundred sixty-eight thousand, five hundred ninety-three".