64410735775409 has 2 divisors, whose sum is σ = 64410735775410. Its totient is φ = 64410735775408.

The previous prime is 64410735775403. The next prime is 64410735775471. The reversal of 64410735775409 is 90457753701446.

It is an a-pointer prime, because the next prime (64410735775471) can be obtained adding 64410735775409 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64409500955809 + 1234819600 = 8025553^2 + 35140^2 .

It is a cyclic number.

It is not a de Polignac number, because 64410735775409 - 2¹² = 64410735771313 is a prime.

It is not a weakly prime, because it can be changed into another prime (64410735775403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32205367887704 + 32205367887705.

It is an arithmetic number, because the mean of its divisors is an integer number (32205367887705).

Almost surely, 2^{64410735775409} is an apocalyptic number.

It is an amenable number.

64410735775409 is a deficient number, since it is larger than the sum of its proper divisors (1).

64410735775409 is an equidigital number, since it uses as much as digits as its factorization.

64410735775409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88905600, while the sum is 62.

The spelling of 64410735775409 in words is "sixty-four trillion, four hundred ten billion, seven hundred thirty-five million, seven hundred seventy-five thousand, four hundred nine".