68999735608 has 16 divisors (see below), whose sum is σ = 136183689000. Its totient is φ = 32684085216.

The previous prime is 68999735591. The next prime is 68999735647. The reversal of 68999735608 is 80653799986.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 226972663 + ... + 226972966.

Almost surely, 2^68999735608 is an apocalyptic number.

It is an amenable number.

68999735608 is a deficient number, since it is larger than the sum of its proper divisors (67183953392).

68999735608 is a wasteful number, since it uses less digits than its factorization.

68999735608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453945654 (or 453945650 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 68999735608 in words is "sixty-eight billion, nine hundred ninety-nine million, seven hundred thirty-five thousand, six hundred eight".