1653318975691 has 2 divisors, whose sum is σ = 1653318975692. Its totient is φ = 1653318975690.

The previous prime is 1653318975631. The next prime is 1653318975703. The reversal of 1653318975691 is 1965798133561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1653318975691 - 2¹³ = 1653318967499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1653318975631) 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, 826659487845 + 826659487846.

It is an arithmetic number, because the mean of its divisors is an integer number (826659487846).

Almost surely, 2^{1653318975691} is an apocalyptic number.

1653318975691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653318975691 is an equidigital number, since it uses as much as digits as its factorization.

1653318975691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 64.

The spelling of 1653318975691 in words is "one trillion, six hundred fifty-three billion, three hundred eighteen million, nine hundred seventy-five thousand, six hundred ninety-one".