64857714341971 has 2 divisors, whose sum is σ = 64857714341972. Its totient is φ = 64857714341970.

The previous prime is 64857714341969. The next prime is 64857714342049. The reversal of 64857714341971 is 17914341775846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64857714341971 - 2¹ = 64857714341969 is a prime.

Together with 64857714341969, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 64857714341897 and 64857714341906.

It is not a weakly prime, because it can be changed into another prime (64857714341071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32428857170985 + 32428857170986.

It is an arithmetic number, because the mean of its divisors is an integer number (32428857170986).

Almost surely, 2^{64857714341971} is an apocalyptic number.

64857714341971 is a deficient number, since it is larger than the sum of its proper divisors (1).

64857714341971 is an equidigital number, since it uses as much as digits as its factorization.

64857714341971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142248960, while the sum is 67.

The spelling of 64857714341971 in words is "sixty-four trillion, eight hundred fifty-seven billion, seven hundred fourteen million, three hundred forty-one thousand, nine hundred seventy-one".