68664628460 has 24 divisors (see below), whose sum is σ = 144204398016. Its totient is φ = 27464198400.

The previous prime is 68664628457. The next prime is 68664628463. The reversal of 68664628460 is 6482646686.

It is an interprime number because it is at equal distance from previous prime (68664628457) and next prime (68664628463).

It is a junction number, because it is equal to n+sod(n) for n = 68664628396 and 68664628405.

It is not an unprimeable number, because it can be changed into a prime (68664628463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270260 + ... + 458660.

It is an arithmetic number, because the mean of its divisors is an integer number (6008516584).

Almost surely, 2^68664628460 is an apocalyptic number.

It is an amenable number.

68664628460 is an abundant number, since it is smaller than the sum of its proper divisors (75539769556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68664628460 is a wasteful number, since it uses less digits than its factorization.

68664628460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206633 (or 206631 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 56.

The spelling of 68664628460 in words is "sixty-eight billion, six hundred sixty-four million, six hundred twenty-eight thousand, four hundred sixty".