57671805613 has 8 divisors (see below), whose sum is σ = 59245927832. Its totient is φ = 56098495296.

The previous prime is 57671805557. The next prime is 57671805647. The reversal of 57671805613 is 31650817675.

It can be written as a sum of positive squares in 4 ways, for example, as 33709694404 + 23962111209 = 183602^2 + 154797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57671805613 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 (57671805683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57570 + ... + 344467.

It is an arithmetic number, because the mean of its divisors is an integer number (7405740979).

Almost surely, 2^57671805613 is an apocalyptic number.

It is an amenable number.

57671805613 is a deficient number, since it is larger than the sum of its proper divisors (1574122219).

57671805613 is a wasteful number, since it uses less digits than its factorization.

57671805613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405951.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 57671805613 in words is "fifty-seven billion, six hundred seventy-one million, eight hundred five thousand, six hundred thirteen".