894361631856 has 320 divisors, whose sum is σ = 2930826986496. Its totient is φ = 228254515200.

The previous prime is 894361631837. The next prime is 894361631857. The reversal of 894361631856 is 658136163498.

It is a super-2 number, since 2×894361631856² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 894361631856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894361631857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336604480 + ... + 336607136.

Almost surely, 2^894361631856 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 894361631856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465413493248).

894361631856 is an abundant number, since it is smaller than the sum of its proper divisors (2036465354640).

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

894361631856 is a wasteful number, since it uses less digits than its factorization.

894361631856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240 (or 4234 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 894361631856 in words is "eight hundred ninety-four billion, three hundred sixty-one million, six hundred thirty-one thousand, eight hundred fifty-six".