68864896307523 has 4 divisors (see below), whose sum is σ = 91819861743368. Its totient is φ = 45909930871680.

The previous prime is 68864896307503. The next prime is 68864896307569. The reversal of 68864896307523 is 32570369846886.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68864896307523 - 2²⁰ = 68864895258947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68864896307503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11477482717918 + ... + 11477482717923.

It is an arithmetic number, because the mean of its divisors is an integer number (22954965435842).

Almost surely, 2^{68864896307523} is an apocalyptic number.

68864896307523 is a deficient number, since it is larger than the sum of its proper divisors (22954965435845).

68864896307523 is a wasteful number, since it uses less digits than its factorization.

68864896307523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22954965435844.

The product of its (nonzero) digits is 2508226560, while the sum is 75.

The spelling of 68864896307523 in words is "sixty-eight trillion, eight hundred sixty-four billion, eight hundred ninety-six million, three hundred seven thousand, five hundred twenty-three".