868814156 has 12 divisors (see below), whose sum is σ = 1737628368. Its totient is φ = 372348912.

The previous prime is 868814137. The next prime is 868814171. The reversal of 868814156 is 651418868.

868814156 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 868814156.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15514511 + ... + 15514566.

It is an arithmetic number, because the mean of its divisors is an integer number (144802364).

Almost surely, 2^868814156 is an apocalyptic number.

It is an amenable number.

868814156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868814156 is a wasteful number, since it uses less digits than its factorization.

868814156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029088 (or 31029086 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 868814156 is about 29475.6536144663. The cubic root of 868814156 is about 954.2063363873.

The spelling of 868814156 in words is "eight hundred sixty-eight million, eight hundred fourteen thousand, one hundred fifty-six".