67646625914 has 12 divisors (see below), whose sum is σ = 118036459674. Its totient is φ = 28991411064.

The previous prime is 67646625829. The next prime is 67646625931. The reversal of 67646625914 is 41952664676.

It can be written as a sum of positive squares in only one way, i.e., 58542222025 + 9104403889 = 241955^2 + 95417^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67646625914.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345135749 + ... + 345135944.

Almost surely, 2^67646625914 is an apocalyptic number.

67646625914 is a deficient number, since it is larger than the sum of its proper divisors (50389833760).

67646625914 is a wasteful number, since it uses less digits than its factorization.

67646625914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690271709 (or 690271702 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 56.

The spelling of 67646625914 in words is "sixty-seven billion, six hundred forty-six million, six hundred twenty-five thousand, nine hundred fourteen".