68888774430 has 384 divisors, whose sum is σ = 228796047360. Its totient is φ = 14431633920.

The previous prime is 68888774351. The next prime is 68888774491. The reversal of 68888774430 is 3447788886.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21149362 + ... + 21152618.

It is an arithmetic number, because the mean of its divisors is an integer number (595823040).

Almost surely, 2^68888774430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68888774430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114398023680).

68888774430 is an abundant number, since it is smaller than the sum of its proper divisors (159907272930).

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

68888774430 is a wasteful number, since it uses less digits than its factorization.

68888774430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 68888774430 in words is "sixty-eight billion, eight hundred eighty-eight million, seven hundred seventy-four thousand, four hundred thirty".