64936401473 has 2 divisors, whose sum is σ = 64936401474. Its totient is φ = 64936401472.

The previous prime is 64936401443. The next prime is 64936401503. The reversal of 64936401473 is 37410463946.

It is a balanced prime because it is at equal distance from previous prime (64936401443) and next prime (64936401503).

It can be written as a sum of positive squares in only one way, i.e., 62623561009 + 2312840464 = 250247^2 + 48092^2 .

It is a cyclic number.

It is not a de Polignac number, because 64936401473 - 2¹⁰ = 64936400449 is a prime.

It is not a weakly prime, because it can be changed into another prime (64936401433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32468200736 + 32468200737.

It is an arithmetic number, because the mean of its divisors is an integer number (32468200737).

Almost surely, 2^64936401473 is an apocalyptic number.

It is an amenable number.

64936401473 is a deficient number, since it is larger than the sum of its proper divisors (1).

64936401473 is an equidigital number, since it uses as much as digits as its factorization.

64936401473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 64936401473 in words is "sixty-four billion, nine hundred thirty-six million, four hundred one thousand, four hundred seventy-three".