1607485448521 has 2 divisors, whose sum is σ = 1607485448522. Its totient is φ = 1607485448520.

The previous prime is 1607485448497. The next prime is 1607485448549. The reversal of 1607485448521 is 1258445847061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1233290207296 + 374195241225 = 1110536^2 + 611715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1607485448521 - 2²³ = 1607477059913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1607485448551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803742724260 + 803742724261.

It is an arithmetic number, because the mean of its divisors is an integer number (803742724261).

Almost surely, 2^{1607485448521} is an apocalyptic number.

It is an amenable number.

1607485448521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1607485448521 is an equidigital number, since it uses as much as digits as its factorization.

1607485448521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 1607485448521 in words is "one trillion, six hundred seven billion, four hundred eighty-five million, four hundred forty-eight thousand, five hundred twenty-one".