57047361145477 has 2 divisors, whose sum is σ = 57047361145478. Its totient is φ = 57047361145476.

The previous prime is 57047361145459. The next prime is 57047361145499. The reversal of 57047361145477 is 77454116374075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45866837520036 + 11180523625441 = 6772506^2 + 3343729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57047361145477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57047361145427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28523680572738 + 28523680572739.

It is an arithmetic number, because the mean of its divisors is an integer number (28523680572739).

Almost surely, 2^{57047361145477} is an apocalyptic number.

It is an amenable number.

57047361145477 is a deficient number, since it is larger than the sum of its proper divisors (1).

57047361145477 is an equidigital number, since it uses as much as digits as its factorization.

57047361145477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69148800, while the sum is 61.

The spelling of 57047361145477 in words is "fifty-seven trillion, forty-seven billion, three hundred sixty-one million, one hundred forty-five thousand, four hundred seventy-seven".