268136001333623 has 2 divisors, whose sum is σ = 268136001333624. Its totient is φ = 268136001333622.

The previous prime is 268136001333611. The next prime is 268136001333659. The reversal of 268136001333623 is 326333100631862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268136001333623 - 2⁴² = 263737954822519 is a prime.

It is a super-2 number, since 2×268136001333623² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268136801333623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134068000666811 + 134068000666812.

It is an arithmetic number, because the mean of its divisors is an integer number (134068000666812).

Almost surely, 2^{268136001333623} is an apocalyptic number.

268136001333623 is a deficient number, since it is larger than the sum of its proper divisors (1).

268136001333623 is an equidigital number, since it uses as much as digits as its factorization.

268136001333623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 268136001333623 in words is "two hundred sixty-eight trillion, one hundred thirty-six billion, one million, three hundred thirty-three thousand, six hundred twenty-three".