68456739216 has 40 divisors (see below), whose sum is σ = 176856117984. Its totient is φ = 22817681920.

The previous prime is 68456739203. The next prime is 68456739229. The reversal of 68456739216 is 61293765486.

It is an interprime number because it is at equal distance from previous prime (68456739203) and next prime (68456739229).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470895 + ... + 1516721.

Almost surely, 2^68456739216 is an apocalyptic number.

It is an amenable number.

68456739216 is an abundant number, since it is smaller than the sum of its proper divisors (108399378768).

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

68456739216 is a wasteful number, since it uses less digits than its factorization.

68456739216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76959 (or 76953 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 68456739216 in words is "sixty-eight billion, four hundred fifty-six million, seven hundred thirty-nine thousand, two hundred sixteen".