68861892 has 48 divisors (see below), whose sum is σ = 181339200. Its totient is φ = 20146560.

The previous prime is 68861887. The next prime is 68861899. The reversal of 68861892 is 29816886.

It is not an unprimeable number, because it can be changed into a prime (68861899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5167 + ... + 12822.

It is an arithmetic number, because the mean of its divisors is an integer number (3777900).

Almost surely, 2^68861892 is an apocalyptic number.

It is an amenable number.

68861892 is an abundant number, since it is smaller than the sum of its proper divisors (112477308).

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

68861892 is a wasteful number, since it uses less digits than its factorization.

68861892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18036 (or 18034 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 68861892 is about 8298.3065742355. The cubic root of 68861892 is about 409.8827584663.

It can be divided in two parts, 6886 and 1892, that added together give a palindrome (8778).

The spelling of 68861892 in words is "sixty-eight million, eight hundred sixty-one thousand, eight hundred ninety-two".