68286266648 has 8 divisors (see below), whose sum is σ = 128036749980. Its totient is φ = 34143133320.

The previous prime is 68286266639. The next prime is 68286266681. The reversal of 68286266648 is 84666268286.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4267891658 + ... + 4267891673.

Almost surely, 2^68286266648 is an apocalyptic number.

It is an amenable number.

68286266648 is a deficient number, since it is larger than the sum of its proper divisors (59750483332).

68286266648 is a wasteful number, since it uses less digits than its factorization.

68286266648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8535783337 (or 8535783333 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 62.

The spelling of 68286266648 in words is "sixty-eight billion, two hundred eighty-six million, two hundred sixty-six thousand, six hundred forty-eight".