268463464364831 has 2 divisors, whose sum is σ = 268463464364832. Its totient is φ = 268463464364830.

The previous prime is 268463464364827. The next prime is 268463464364881. The reversal of 268463464364831 is 138463464364862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268463464364831 - 2² = 268463464364827 is a prime.

It is a super-2 number, since 2×268463464364831² (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 (268463464364881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134231732182415 + 134231732182416.

It is an arithmetic number, because the mean of its divisors is an integer number (134231732182416).

Almost surely, 2^{268463464364831} is an apocalyptic number.

268463464364831 is a deficient number, since it is larger than the sum of its proper divisors (1).

268463464364831 is an equidigital number, since it uses as much as digits as its factorization.

268463464364831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1146617856, while the sum is 68.

The spelling of 268463464364831 in words is "two hundred sixty-eight trillion, four hundred sixty-three billion, four hundred sixty-four million, three hundred sixty-four thousand, eight hundred thirty-one".