868154868 has 96 divisors (see below), whose sum is σ = 2578867200. Its totient is φ = 247412448.

The previous prime is 868154863. The next prime is 868154887. The reversal of 868154868 is 868451868.

868154868 is a `hidden beast` number, since 86 + 81 + 5 + 486 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868154863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351823 + ... + 354281.

It is an arithmetic number, because the mean of its divisors is an integer number (26863200).

Almost surely, 2^868154868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868154868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289433600).

868154868 is an abundant number, since it is smaller than the sum of its proper divisors (1710712332).

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

868154868 is a wasteful number, since it uses less digits than its factorization.

868154868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 2938 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The square root of 868154868 is about 29464.4678893069. The cubic root of 868154868 is about 953.9649130721.

The spelling of 868154868 in words is "eight hundred sixty-eight million, one hundred fifty-four thousand, eight hundred sixty-eight".