840488808001 has 2 divisors, whose sum is σ = 840488808002. Its totient is φ = 840488808000.

The previous prime is 840488807987. The next prime is 840488808031. The reversal of 840488808001 is 100808884048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459750446401 + 380738361600 = 678049^2 + 617040^2 .

It is a cyclic number.

It is not a de Polignac number, because 840488808001 - 2³⁵ = 806129069633 is a prime.

It is not a weakly prime, because it can be changed into another prime (840488808031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420244404000 + 420244404001.

It is an arithmetic number, because the mean of its divisors is an integer number (420244404001).

Almost surely, 2^840488808001 is an apocalyptic number.

It is an amenable number.

840488808001 is a deficient number, since it is larger than the sum of its proper divisors (1).

840488808001 is an equidigital number, since it uses as much as digits as its factorization.

840488808001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524288, while the sum is 49.

The spelling of 840488808001 in words is "eight hundred forty billion, four hundred eighty-eight million, eight hundred eight thousand, one".