54857631382847 has 2 divisors, whose sum is σ = 54857631382848. Its totient is φ = 54857631382846.

The previous prime is 54857631382783. The next prime is 54857631382903. The reversal of 54857631382847 is 74828313675845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54857631382847 - 2⁶ = 54857631382783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54857631382247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27428815691423 + 27428815691424.

It is an arithmetic number, because the mean of its divisors is an integer number (27428815691424).

Almost surely, 2^{54857631382847} is an apocalyptic number.

54857631382847 is a deficient number, since it is larger than the sum of its proper divisors (1).

54857631382847 is an equidigital number, since it uses as much as digits as its factorization.

54857631382847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1083801600, while the sum is 71.

The spelling of 54857631382847 in words is "fifty-four trillion, eight hundred fifty-seven billion, six hundred thirty-one million, three hundred eighty-two thousand, eight hundred forty-seven".