68892991688448 has 108 divisors (see below), whose sum is σ = 201891798814888. Its totient is φ = 22587866081280.

The previous prime is 68892991688431. The next prime is 68892991688519. The reversal of 68892991688448 is 84488619929886.

68892991688448 is a `hidden beast` number, since 6 + 8 + 89 + 2 + 9 + 9 + 1 + 6 + 88 + 448 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 244953490 + ... + 245234577.

Almost surely, 2^{68892991688448} is an apocalyptic number.

It is an amenable number.

68892991688448 is an abundant number, since it is smaller than the sum of its proper divisors (132998807126440).

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

68892991688448 is a wasteful number, since it uses less digits than its factorization.

68892991688448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490188150 (or 490188133 counting only the distinct ones).

The product of its digits is 27518828544, while the sum is 90.

The spelling of 68892991688448 in words is "sixty-eight trillion, eight hundred ninety-two billion, nine hundred ninety-one million, six hundred eighty-eight thousand, four hundred forty-eight".