1461364366321 has 2 divisors, whose sum is σ = 1461364366322. Its totient is φ = 1461364366320.

The previous prime is 1461364366313. The next prime is 1461364366417. The reversal of 1461364366321 is 1236634631641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1435050660096 + 26313706225 = 1197936^2 + 162215^2 .

It is an emirp because it is prime and its reverse (1236634631641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1461364366321 - 2³ = 1461364366313 is a prime.

It is a super-2 number, since 2×1461364366321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1461364367321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730682183160 + 730682183161.

It is an arithmetic number, because the mean of its divisors is an integer number (730682183161).

Almost surely, 2^{1461364366321} is an apocalyptic number.

It is an amenable number.

1461364366321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461364366321 is an equidigital number, since it uses as much as digits as its factorization.

1461364366321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 46.

Adding to 1461364366321 its reverse (1236634631641), we get a palindrome (2697998997962).

The spelling of 1461364366321 in words is "one trillion, four hundred sixty-one billion, three hundred sixty-four million, three hundred sixty-six thousand, three hundred twenty-one".