840144275712 has 360 divisors, whose sum is σ = 2865650194176. Its totient is φ = 239822290944.

The previous prime is 840144275681. The next prime is 840144275713. The reversal of 840144275712 is 217572441048.

840144275712 is a `hidden beast` number, since 8 + 40 + 14 + 4 + 27 + 571 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (840144275713) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 225419193 + ... + 225422919.

Almost surely, 2^840144275712 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 840144275712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432825097088).

840144275712 is an abundant number, since it is smaller than the sum of its proper divisors (2025505918464).

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

840144275712 is a wasteful number, since it uses less digits than its factorization.

840144275712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315 (or 5292 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 840144275712 in words is "eight hundred forty billion, one hundred forty-four million, two hundred seventy-five thousand, seven hundred twelve".