64857714342049 has 2 divisors, whose sum is σ = 64857714342050. Its totient is φ = 64857714342048.

The previous prime is 64857714341971. The next prime is 64857714342053. The reversal of 64857714342049 is 94024341775846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64263069780625 + 594644561424 = 8016425^2 + 771132^2 .

It is a cyclic number.

It is not a de Polignac number, because 64857714342049 - 2¹⁹ = 64857713817761 is a prime.

It is not a weakly prime, because it can be changed into another prime (64857714342149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32428857171024 + 32428857171025.

It is an arithmetic number, because the mean of its divisors is an integer number (32428857171025).

It is a 1-persistent number, because it is pandigital, but 2⋅64857714342049 = 129715428684098 is not.

Almost surely, 2^{64857714342049} is an apocalyptic number.

It is an amenable number.

64857714342049 is a deficient number, since it is larger than the sum of its proper divisors (1).

64857714342049 is an equidigital number, since it uses as much as digits as its factorization.

64857714342049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 64857714342049 in words is "sixty-four trillion, eight hundred fifty-seven billion, seven hundred fourteen million, three hundred forty-two thousand, forty-nine".