57643827807 has 16 divisors (see below), whose sum is σ = 77047200000. Its totient is φ = 38334908544.

The previous prime is 57643827803. The next prime is 57643827859. The reversal of 57643827807 is 70872834675.

It is a happy number.

It is not a de Polignac number, because 57643827807 - 2² = 57643827803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57643827803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3898294 + ... + 3913052.

It is an arithmetic number, because the mean of its divisors is an integer number (4815450000).

Almost surely, 2^57643827807 is an apocalyptic number.

57643827807 is a deficient number, since it is larger than the sum of its proper divisors (19403372193).

57643827807 is a wasteful number, since it uses less digits than its factorization.

57643827807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17870.

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 57643827807 in words is "fifty-seven billion, six hundred forty-three million, eight hundred twenty-seven thousand, eight hundred seven".