64410410321 has 2 divisors, whose sum is σ = 64410410322. Its totient is φ = 64410410320.

The previous prime is 64410410261. The next prime is 64410410371. The reversal of 64410410321 is 12301401446.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60555366400 + 3855043921 = 246080^2 + 62089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64410410321 is a prime.

It is not a weakly prime, because it can be changed into another prime (64410410371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32205205160 + 32205205161.

It is an arithmetic number, because the mean of its divisors is an integer number (32205205161).

Almost surely, 2^64410410321 is an apocalyptic number.

It is an amenable number.

64410410321 is a deficient number, since it is larger than the sum of its proper divisors (1).

64410410321 is an equidigital number, since it uses as much as digits as its factorization.

64410410321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 64410410321 its reverse (12301401446), we get a palindrome (76711811767).

The spelling of 64410410321 in words is "sixty-four billion, four hundred ten million, four hundred ten thousand, three hundred twenty-one".