894649845492 has 216 divisors, whose sum is σ = 2502728878104. Its totient is φ = 269248831488.

The previous prime is 894649845443. The next prime is 894649845493. The reversal of 894649845492 is 294548946498.

894649845492 is a `hidden beast` number, since 8 + 9 + 4 + 6 + 4 + 98 + 45 + 492 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 594755609616 + 299894235876 = 771204^2 + 547626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 894649845492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894649845493) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 108662208 + ... + 108670440.

It is an arithmetic number, because the mean of its divisors is an integer number (11586707769).

Almost surely, 2^894649845492 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 894649845492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251364439052).

894649845492 is an abundant number, since it is smaller than the sum of its proper divisors (1608079032612).

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

894649845492 is a wasteful number, since it uses less digits than its factorization.

894649845492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659 (or 8641 counting only the distinct ones).

The product of its digits is 716636160, while the sum is 72.

The spelling of 894649845492 in words is "eight hundred ninety-four billion, six hundred forty-nine million, eight hundred forty-five thousand, four hundred ninety-two".