68993458176870 has 128 divisors (see below), whose sum is σ = 185895208396800. Its totient is φ = 18207022703616.

The previous prime is 68993458176869. The next prime is 68993458176883. The reversal of 68993458176870 is 7867185439986.

68993458176870 is a `hidden beast` number, since 6 + 8 + 9 + 93 + 458 + 1 + 7 + 6 + 8 + 70 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68993458176870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323261251 + ... + 323474609.

It is an arithmetic number, because the mean of its divisors is an integer number (1452306315600).

Almost surely, 2^{68993458176870} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68993458176870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92947604198400).

68993458176870 is an abundant number, since it is smaller than the sum of its proper divisors (116901750219930).

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

68993458176870 is a wasteful number, since it uses less digits than its factorization.

68993458176870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225819 (or 225813 counting only the distinct ones).

The product of its (nonzero) digits is 4389396480, while the sum is 81.

The spelling of 68993458176870 in words is "sixty-eight trillion, nine hundred ninety-three billion, four hundred fifty-eight million, one hundred seventy-six thousand, eight hundred seventy".