57287398447 has 2 divisors, whose sum is σ = 57287398448. Its totient is φ = 57287398446.

The previous prime is 57287398409. The next prime is 57287398451. The reversal of 57287398447 is 74489378275.

57287398447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57287398447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57287398477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28643699223 + 28643699224.

It is an arithmetic number, because the mean of its divisors is an integer number (28643699224).

Almost surely, 2^57287398447 is an apocalyptic number.

57287398447 is a deficient number, since it is larger than the sum of its proper divisors (1).

57287398447 is an equidigital number, since it uses as much as digits as its factorization.

57287398447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94832640, while the sum is 64.

The spelling of 57287398447 in words is "fifty-seven billion, two hundred eighty-seven million, three hundred ninety-eight thousand, four hundred forty-seven".