57124820827 has 2 divisors, whose sum is σ = 57124820828. Its totient is φ = 57124820826.

The previous prime is 57124820773. The next prime is 57124820869. The reversal of 57124820827 is 72802842175.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57124820827 - 2¹⁹ = 57124296539 is a prime.

It is not a weakly prime, because it can be changed into another prime (57124820897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28562410413 + 28562410414.

It is an arithmetic number, because the mean of its divisors is an integer number (28562410414).

Almost surely, 2^57124820827 is an apocalyptic number.

57124820827 is a deficient number, since it is larger than the sum of its proper divisors (1).

57124820827 is an equidigital number, since it uses as much as digits as its factorization.

57124820827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 57124820827 in words is "fifty-seven billion, one hundred twenty-four million, eight hundred twenty thousand, eight hundred twenty-seven".