1198813556753 has 2 divisors, whose sum is σ = 1198813556754. Its totient is φ = 1198813556752.

The previous prime is 1198813556749. The next prime is 1198813556797. The reversal of 1198813556753 is 3576553188911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1054096462864 + 144717093889 = 1026692^2 + 380417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198813556753 - 2² = 1198813556749 is a prime.

It is not a weakly prime, because it can be changed into another prime (1198813556723) 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, 599406778376 + 599406778377.

It is an arithmetic number, because the mean of its divisors is an integer number (599406778377).

Almost surely, 2^{1198813556753} is an apocalyptic number.

It is an amenable number.

1198813556753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198813556753 is an equidigital number, since it uses as much as digits as its factorization.

1198813556753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216000, while the sum is 62.

The spelling of 1198813556753 in words is "one trillion, one hundred ninety-eight billion, eight hundred thirteen million, five hundred fifty-six thousand, seven hundred fifty-three".