26033613121 has 2 divisors, whose sum is σ = 26033613122. Its totient is φ = 26033613120.

The previous prime is 26033613077. The next prime is 26033613167. The reversal of 26033613121 is 12131633062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15716132496 + 10317480625 = 125364^2 + 101575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26033613121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26033613121.

It is not a weakly prime, because it can be changed into another prime (26033613521) 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, 13016806560 + 13016806561.

It is an arithmetic number, because the mean of its divisors is an integer number (13016806561).

Almost surely, 2^26033613121 is an apocalyptic number.

It is an amenable number.

26033613121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26033613121 is an equidigital number, since it uses as much as digits as its factorization.

26033613121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 26033613121 in words is "twenty-six billion, thirty-three million, six hundred thirteen thousand, one hundred twenty-one".