68678880 has 96 divisors (see below), whose sum is σ = 217728000. Its totient is φ = 18196992.

The previous prime is 68678879. The next prime is 68678903. The reversal of 68678880 is 8887686.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95161 + ... + 95879.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^68678880 is an apocalyptic number.

68678880 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 68678880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108864000).

68678880 is an abundant number, since it is smaller than the sum of its proper divisors (149049120).

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

68678880 is a wasteful number, since it uses less digits than its factorization.

68678880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 68678880 is about 8287.2721688141. The cubic root of 68678880 is about 409.5193256439.

The spelling of 68678880 in words is "sixty-eight million, six hundred seventy-eight thousand, eight hundred eighty".