68788980 has 192 divisors, whose sum is σ = 237081600. Its totient is φ = 16450560.

The previous prime is 68788963. The next prime is 68788997. The reversal of 68788980 is 8988786.

It is an interprime number because it is at equal distance from previous prime (68788963) and next prime (68788997).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 287701 + ... + 287939.

It is an arithmetic number, because the mean of its divisors is an integer number (1234800).

Almost surely, 2^68788980 is an apocalyptic number.

68788980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68788980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118540800).

68788980 is an abundant number, since it is smaller than the sum of its proper divisors (168292620).

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

68788980 is a wasteful number, since it uses less digits than its factorization.

68788980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 68788980 is about 8293.9122252409. The cubic root of 68788980 is about 409.7380440497.

The spelling of 68788980 in words is "sixty-eight million, seven hundred eighty-eight thousand, nine hundred eighty".