268704721463 has 2 divisors, whose sum is σ = 268704721464. Its totient is φ = 268704721462.

The previous prime is 268704721367. The next prime is 268704721561. The reversal of 268704721463 is 364127407862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268704721463 - 2¹² = 268704717367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268704721163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134352360731 + 134352360732.

It is an arithmetic number, because the mean of its divisors is an integer number (134352360732).

Almost surely, 2^268704721463 is an apocalyptic number.

268704721463 is a deficient number, since it is larger than the sum of its proper divisors (1).

268704721463 is an equidigital number, since it uses as much as digits as its factorization.

268704721463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 268704721463 in words is "two hundred sixty-eight billion, seven hundred four million, seven hundred twenty-one thousand, four hundred sixty-three".