57205686631 has 8 divisors (see below), whose sum is σ = 58192554240. Its totient is φ = 56219395128.

The previous prime is 57205686611. The next prime is 57205686649. The reversal of 57205686631 is 13668650275.

57205686631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 57205686631 - 2¹¹ = 57205684583 is a prime.

It is a super-2 number, since 2×57205686631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57205686611) 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, 58720 + ... + 343306.

It is an arithmetic number, because the mean of its divisors is an integer number (7274069280).

Almost surely, 2^57205686631 is an apocalyptic number.

57205686631 is a deficient number, since it is larger than the sum of its proper divisors (986867609).

57205686631 is a wasteful number, since it uses less digits than its factorization.

57205686631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288053.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 57205686631 in words is "fifty-seven billion, two hundred five million, six hundred eighty-six thousand, six hundred thirty-one".