57478012545917 has 4 divisors (see below), whose sum is σ = 57478346467680. Its totient is φ = 57477678624156.

The previous prime is 57478012545913. The next prime is 57478012545953. The reversal of 57478012545917 is 71954521087475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57478012545917 - 2² = 57478012545913 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 (57478012545913) 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, 166702553 + ... + 167046990.

It is an arithmetic number, because the mean of its divisors is an integer number (14369586616920).

Almost surely, 2^{57478012545917} is an apocalyptic number.

It is an amenable number.

57478012545917 is a deficient number, since it is larger than the sum of its proper divisors (333921763).

57478012545917 is a wasteful number, since it uses less digits than its factorization.

57478012545917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333921762.

The product of its (nonzero) digits is 98784000, while the sum is 65.

The spelling of 57478012545917 in words is "fifty-seven trillion, four hundred seventy-eight billion, twelve million, five hundred forty-five thousand, nine hundred seventeen".