1464504036521 has 2 divisors, whose sum is σ = 1464504036522. Its totient is φ = 1464504036520.

The previous prime is 1464504036509. The next prime is 1464504036553. The reversal of 1464504036521 is 1256304054641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069662720025 + 394841316496 = 1034245^2 + 628364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1464504036521 - 2¹⁴ = 1464504020137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1464504036571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732252018260 + 732252018261.

It is an arithmetic number, because the mean of its divisors is an integer number (732252018261).

Almost surely, 2^{1464504036521} is an apocalyptic number.

It is an amenable number.

1464504036521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1464504036521 is an equidigital number, since it uses as much as digits as its factorization.

1464504036521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 1464504036521 in words is "one trillion, four hundred sixty-four billion, five hundred four million, thirty-six thousand, five hundred twenty-one".