868194900 has 54 divisors (see below), whose sum is σ = 2721311502. Its totient is φ = 231518400.

The previous prime is 868194863. The next prime is 868194941. The reversal of 868194900 is 9491868.

868194900 is a `hidden beast` number, since 86 + 81 + 9 + 490 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 17189316 + 851005584 = 4146^2 + 29172^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 481431 + ... + 483230.

Almost surely, 2^868194900 is an apocalyptic number.

It is an amenable number.

868194900 is an abundant number, since it is smaller than the sum of its proper divisors (1853116602).

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

868194900 is a wasteful number, since it uses less digits than its factorization.

868194900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964681 (or 964671 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 868194900 is about 29465.1472081848. The cubic root of 868194900 is about 953.9795757926.

It can be divided in two parts, 86819 and 4900, that added together give a palindrome (91719).

The spelling of 868194900 in words is "eight hundred sixty-eight million, one hundred ninety-four thousand, nine hundred".