68289344623591 has 24 divisors (see below), whose sum is σ = 85851583402704. Its totient is φ = 53840206949760.

The previous prime is 68289344623579. The next prime is 68289344623601. The reversal of 68289344623591 is 19532644398286.

It is a happy number.

It is not a de Polignac number, because 68289344623591 - 2⁵ = 68289344623559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68289344623591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68289344623391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189227190 + ... + 189587731.

It is an arithmetic number, because the mean of its divisors is an integer number (3577149308446).

Almost surely, 2^{68289344623591} is an apocalyptic number.

68289344623591 is a deficient number, since it is larger than the sum of its proper divisors (17562238779113).

68289344623591 is a wasteful number, since it uses less digits than its factorization.

68289344623591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378815231 (or 378815224 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 70.

The spelling of 68289344623591 in words is "sixty-eight trillion, two hundred eighty-nine billion, three hundred forty-four million, six hundred twenty-three thousand, five hundred ninety-one".