64771741426373 has 2 divisors, whose sum is σ = 64771741426374. Its totient is φ = 64771741426372.

The previous prime is 64771741426291. The next prime is 64771741426387. The reversal of 64771741426373 is 37362414717746.

64771741426373 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 can be written as a sum of positive squares in only one way, i.e., 59472753812164 + 5298987614209 = 7711858^2 + 2301953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64771741426373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64771141426373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32385870713186 + 32385870713187.

It is an arithmetic number, because the mean of its divisors is an integer number (32385870713187).

Almost surely, 2^{64771741426373} is an apocalyptic number.

It is an amenable number.

64771741426373 is a deficient number, since it is larger than the sum of its proper divisors (1).

64771741426373 is an equidigital number, since it uses as much as digits as its factorization.

64771741426373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99574272, while the sum is 62.

The spelling of 64771741426373 in words is "sixty-four trillion, seven hundred seventy-one billion, seven hundred forty-one million, four hundred twenty-six thousand, three hundred seventy-three".