68997866044 has 12 divisors (see below), whose sum is σ = 120748206600. Its totient is φ = 34498378448.

The previous prime is 68997866029. The next prime is 68997866057. The reversal of 68997866044 is 44066879986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285387 + ... + 468445.

It is an arithmetic number, because the mean of its divisors is an integer number (10062350550).

Almost surely, 2^68997866044 is an apocalyptic number.

It is an amenable number.

68997866044 is a deficient number, since it is larger than the sum of its proper divisors (51750340556).

68997866044 is a wasteful number, since it uses less digits than its factorization.

68997866044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277292 (or 277290 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 67.

The spelling of 68997866044 in words is "sixty-eight billion, nine hundred ninety-seven million, eight hundred sixty-six thousand, forty-four".