64126931140673 has 2 divisors, whose sum is σ = 64126931140674. Its totient is φ = 64126931140672.

The previous prime is 64126931140499. The next prime is 64126931140681. The reversal of 64126931140673 is 37604113962146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62574871143184 + 1552059997489 = 7910428^2 + 1245817^2 .

It is a cyclic number.

It is not a de Polignac number, because 64126931140673 - 2¹² = 64126931136577 is a prime.

It is a super-2 number, since 2×64126931140673² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64126931140693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063465570336 + 32063465570337.

It is an arithmetic number, because the mean of its divisors is an integer number (32063465570337).

Almost surely, 2^{64126931140673} is an apocalyptic number.

It is an amenable number.

64126931140673 is a deficient number, since it is larger than the sum of its proper divisors (1).

64126931140673 is an equidigital number, since it uses as much as digits as its factorization.

64126931140673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 64126931140673 in words is "sixty-four trillion, one hundred twenty-six billion, nine hundred thirty-one million, one hundred forty thousand, six hundred seventy-three".