840994608960 has 448 divisors, whose sum is σ = 3239193968640. Its totient is φ = 203711293440.

The previous prime is 840994608911. The next prime is 840994608973. The reversal of 840994608960 is 69806499048.

840994608960 is a `hidden beast` number, since 8 + 4 + 0 + 99 + 460 + 89 + 6 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148924857 + ... + 148930503.

It is an arithmetic number, because the mean of its divisors is an integer number (7230343680).

Almost surely, 2^840994608960 is an apocalyptic number.

840994608960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840994608960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619596984320).

840994608960 is an abundant number, since it is smaller than the sum of its proper divisors (2398199359680).

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

840994608960 is a wasteful number, since it uses less digits than its factorization.

840994608960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251 (or 7235 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 840994608960 in words is "eight hundred forty billion, nine hundred ninety-four million, six hundred eight thousand, nine hundred sixty".