57145857847 has 8 divisors (see below), whose sum is σ = 61547265360. Its totient is φ = 52745246400.

The previous prime is 57145857823. The next prime is 57145857859. The reversal of 57145857847 is 74875854175.

It is a happy number.

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 57145857847 - 2⁷ = 57145857719 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 (57145852847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45529 + ... + 341122.

It is an arithmetic number, because the mean of its divisors is an integer number (7693408170).

Almost surely, 2^57145857847 is an apocalyptic number.

57145857847 is a deficient number, since it is larger than the sum of its proper divisors (4401407513).

57145857847 is a wasteful number, since it uses less digits than its factorization.

57145857847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398033.

The product of its digits is 43904000, while the sum is 61.

The spelling of 57145857847 in words is "fifty-seven billion, one hundred forty-five million, eight hundred fifty-seven thousand, eight hundred forty-seven".