57807472861 has 4 divisors (see below), whose sum is σ = 57923320000. Its totient is φ = 57691625724.

The previous prime is 57807472841. The next prime is 57807472873. The reversal of 57807472861 is 16827470875.

57807472861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57807472861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57807472841) 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, 57922821 + ... + 57923818.

It is an arithmetic number, because the mean of its divisors is an integer number (14480830000).

Almost surely, 2^57807472861 is an apocalyptic number.

It is an amenable number.

57807472861 is a deficient number, since it is larger than the sum of its proper divisors (115847139).

57807472861 is a wasteful number, since it uses less digits than its factorization.

57807472861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115847138.

The product of its (nonzero) digits is 5268480, while the sum is 55.

The spelling of 57807472861 in words is "fifty-seven billion, eight hundred seven million, four hundred seventy-two thousand, eight hundred sixty-one".