68861380 has 24 divisors (see below), whose sum is σ = 165267648. Its totient is φ = 23609568.

The previous prime is 68861321. The next prime is 68861381. The reversal of 68861380 is 8316886.

It is not an unprimeable number, because it can be changed into a prime (68861381) 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 7 ways as a sum of consecutive naturals, for example, 245794 + ... + 246073.

It is an arithmetic number, because the mean of its divisors is an integer number (6886152).

Almost surely, 2^68861380 is an apocalyptic number.

It is an amenable number.

68861380 is an abundant number, since it is smaller than the sum of its proper divisors (96406268).

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

68861380 is a wasteful number, since it uses less digits than its factorization.

68861380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491883 (or 491881 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 68861380 is about 8298.2757245105. The cubic root of 68861380 is about 409.8817426142.

The spelling of 68861380 in words is "sixty-eight million, eight hundred sixty-one thousand, three hundred eighty".