57291282582861 has 4 divisors (see below), whose sum is σ = 76388376777152. Its totient is φ = 38194188388572.

The previous prime is 57291282582827. The next prime is 57291282582869. The reversal of 57291282582861 is 16828528219275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57291282582861 - 2¹⁵ = 57291282550093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57291282582792 and 57291282582801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57291282582869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9548547097141 + ... + 9548547097146.

It is an arithmetic number, because the mean of its divisors is an integer number (19097094194288).

Almost surely, 2^{57291282582861} is an apocalyptic number.

It is an amenable number.

57291282582861 is a deficient number, since it is larger than the sum of its proper divisors (19097094194291).

57291282582861 is a wasteful number, since it uses less digits than its factorization.

57291282582861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19097094194290.

The product of its digits is 77414400, while the sum is 66.

The spelling of 57291282582861 in words is "fifty-seven trillion, two hundred ninety-one billion, two hundred eighty-two million, five hundred eighty-two thousand, eight hundred sixty-one".