68011491026463 has 32 divisors (see below), whose sum is σ = 91824130045440. Its totient is φ = 44772491836800.

The previous prime is 68011491026449. The next prime is 68011491026483. The reversal of 68011491026463 is 36462019411086.

It is a happy number.

It is not a de Polignac number, because 68011491026463 - 2⁵ = 68011491026431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68011491026443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554225013 + ... + 554347713.

It is an arithmetic number, because the mean of its divisors is an integer number (2869504063920).

Almost surely, 2^{68011491026463} is an apocalyptic number.

68011491026463 is a deficient number, since it is larger than the sum of its proper divisors (23812639018977).

68011491026463 is a wasteful number, since it uses less digits than its factorization.

68011491026463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127919.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 68011491026463 in words is "sixty-eight trillion, eleven billion, four hundred ninety-one million, twenty-six thousand, four hundred sixty-three".