11978876610653 has 2 divisors, whose sum is σ = 11978876610654. Its totient is φ = 11978876610652.

The previous prime is 11978876610643. The next prime is 11978876610739. The reversal of 11978876610653 is 35601667887911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6381474240964 + 5597402369689 = 2526158^2 + 2365883^2 .

It is a cyclic number.

It is not a de Polignac number, because 11978876610653 - 2⁴ = 11978876610637 is a prime.

It is a super-3 number, since 3×11978876610653³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11978876610643) 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, 5989438305326 + 5989438305327.

It is an arithmetic number, because the mean of its divisors is an integer number (5989438305327).

Almost surely, 2^{11978876610653} is an apocalyptic number.

It is an amenable number.

11978876610653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11978876610653 is an equidigital number, since it uses as much as digits as its factorization.

11978876610653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 11978876610653 in words is "eleven trillion, nine hundred seventy-eight billion, eight hundred seventy-six million, six hundred ten thousand, six hundred fifty-three".