68918860 has 12 divisors (see below), whose sum is σ = 144729648. Its totient is φ = 27567536.

The previous prime is 68918851. The next prime is 68918869. The reversal of 68918860 is 6881986.

It is an interprime number because it is at equal distance from previous prime (68918851) and next prime (68918869).

It is a self number, because there is not a number n which added to its sum of digits gives 68918860.

It is not an unprimeable number, because it can be changed into a prime (68918869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1722952 + ... + 1722991.

It is an arithmetic number, because the mean of its divisors is an integer number (12060804).

Almost surely, 2^68918860 is an apocalyptic number.

It is an amenable number.

68918860 is an abundant number, since it is smaller than the sum of its proper divisors (75810788).

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

68918860 is a wasteful number, since it uses less digits than its factorization.

68918860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445952 (or 3445950 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 68918860 is about 8301.7383721724. The cubic root of 68918860 is about 409.9957564502.

It can be divided in two parts, 6891 and 8860, that added together give a palindrome (15751).

The spelling of 68918860 in words is "sixty-eight million, nine hundred eighteen thousand, eight hundred sixty".