68954665288 has 16 divisors (see below), whose sum is σ = 131061094380. Its totient is φ = 34005040128.

The previous prime is 68954665279. The next prime is 68954665397. The reversal of 68954665288 is 88256645986.

It can be written as a sum of positive squares in 2 ways, for example, as 64596288964 + 4358376324 = 254158^2 + 66018^2 .

It is a super-2 number, since 2×68954665288² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59035945 + ... + 59037112.

Almost surely, 2^68954665288 is an apocalyptic number.

It is an amenable number.

68954665288 is a deficient number, since it is larger than the sum of its proper divisors (62106429092).

68954665288 is a wasteful number, since it uses less digits than its factorization.

68954665288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118073136 (or 118073132 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 67.

The spelling of 68954665288 in words is "sixty-eight billion, nine hundred fifty-four million, six hundred sixty-five thousand, two hundred eighty-eight".