57641688677 has 4 divisors (see below), whose sum is σ = 57644203776. Its totient is φ = 57639173580.

The previous prime is 57641688667. The next prime is 57641688719. The reversal of 57641688677 is 77688614675.

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 not a de Polignac number, because 57641688677 - 2⁶ = 57641688613 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 (57641688667) 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, 1222853 + ... + 1269114.

It is an arithmetic number, because the mean of its divisors is an integer number (14411050944).

Almost surely, 2^57641688677 is an apocalyptic number.

It is an amenable number.

57641688677 is a deficient number, since it is larger than the sum of its proper divisors (2515099).

57641688677 is a wasteful number, since it uses less digits than its factorization.

57641688677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515098.

The product of its digits is 94832640, while the sum is 65.

The spelling of 57641688677 in words is "fifty-seven billion, six hundred forty-one million, six hundred eighty-eight thousand, six hundred seventy-seven".