57643528867 has 4 divisors (see below), whose sum is σ = 58869986976. Its totient is φ = 56417070760.

The previous prime is 57643528849. The next prime is 57643528927. The reversal of 57643528867 is 76882534675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57643528867 - 2¹¹ = 57643526819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57643520867) 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, 613228984 + ... + 613229077.

It is an arithmetic number, because the mean of its divisors is an integer number (14717496744).

Almost surely, 2^57643528867 is an apocalyptic number.

57643528867 is a deficient number, since it is larger than the sum of its proper divisors (1226458109).

57643528867 is a wasteful number, since it uses less digits than its factorization.

57643528867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226458108.

The product of its digits is 67737600, while the sum is 61.

The spelling of 57643528867 in words is "fifty-seven billion, six hundred forty-three million, five hundred twenty-eight thousand, eight hundred sixty-seven".