57078861841 has 4 divisors (see below), whose sum is σ = 57860764132. Its totient is φ = 56296959552.

The previous prime is 57078861811. The next prime is 57078861857. The reversal of 57078861841 is 14816887075.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39791871441 + 17286990400 = 199479^2 + 131480^2 .

It is a cyclic number.

It is not a de Polignac number, because 57078861841 - 2¹³ = 57078853649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57078861811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390951036 + ... + 390951181.

It is an arithmetic number, because the mean of its divisors is an integer number (14465191033).

Almost surely, 2^57078861841 is an apocalyptic number.

It is an amenable number.

57078861841 is a deficient number, since it is larger than the sum of its proper divisors (781902291).

57078861841 is an equidigital number, since it uses as much as digits as its factorization.

57078861841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781902290.

The product of its (nonzero) digits is 3010560, while the sum is 55.

The spelling of 57078861841 in words is "fifty-seven billion, seventy-eight million, eight hundred sixty-one thousand, eight hundred forty-one".