68905862923 has 8 divisors (see below), whose sum is σ = 70903034496. Its totient is φ = 66923764800.

The previous prime is 68905862917. The next prime is 68905862999. The reversal of 68905862923 is 32926850986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68905862923 - 2²⁹ = 68368992011 is a prime.

It is a super-2 number, since 2×68905862923² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68905865923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3759088 + ... + 3777373.

It is an arithmetic number, because the mean of its divisors is an integer number (8862879312).

Almost surely, 2^68905862923 is an apocalyptic number.

68905862923 is a deficient number, since it is larger than the sum of its proper divisors (1997171573).

68905862923 is a wasteful number, since it uses less digits than its factorization.

68905862923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536725.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 68905862923 in words is "sixty-eight billion, nine hundred five million, eight hundred sixty-two thousand, nine hundred twenty-three".