268190980699573 has 2 divisors, whose sum is σ = 268190980699574. Its totient is φ = 268190980699572.

The previous prime is 268190980699459. The next prime is 268190980699591. The reversal of 268190980699573 is 375996089091862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260244230975569 + 7946749724004 = 16132087^2 + 2818998^2 .

It is a cyclic number.

It is not a de Polignac number, because 268190980699573 - 2⁴¹ = 265991957444021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268190980699973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134095490349786 + 134095490349787.

It is an arithmetic number, because the mean of its divisors is an integer number (134095490349787).

Almost surely, 2^{268190980699573} is an apocalyptic number.

It is an amenable number.

268190980699573 is a deficient number, since it is larger than the sum of its proper divisors (1).

268190980699573 is an equidigital number, since it uses as much as digits as its factorization.

268190980699573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3174474240, while the sum is 82.

The spelling of 268190980699573 in words is "two hundred sixty-eight trillion, one hundred ninety billion, nine hundred eighty million, six hundred ninety-nine thousand, five hundred seventy-three".