68448433511 has 2 divisors, whose sum is σ = 68448433512. Its totient is φ = 68448433510.

The previous prime is 68448433507. The next prime is 68448433517. The reversal of 68448433511 is 11533484486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68448433511 - 2² = 68448433507 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68448433517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34224216755 + 34224216756.

It is an arithmetic number, because the mean of its divisors is an integer number (34224216756).

Almost surely, 2^68448433511 is an apocalyptic number.

68448433511 is a deficient number, since it is larger than the sum of its proper divisors (1).

68448433511 is an equidigital number, since it uses as much as digits as its factorization.

68448433511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 47.

The spelling of 68448433511 in words is "sixty-eight billion, four hundred forty-eight million, four hundred thirty-three thousand, five hundred eleven".