840465000180 has 192 divisors, whose sum is σ = 2817649336320. Its totient is φ = 206756416512.

The previous prime is 840465000173. The next prime is 840465000187. The reversal of 840465000180 is 81000564048.

It is an interprime number because it is at equal distance from previous prime (840465000173) and next prime (840465000187).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840465000187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11638264 + ... + 11710256.

It is an arithmetic number, because the mean of its divisors is an integer number (14675256960).

Almost surely, 2^840465000180 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 840465000180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408824668160).

840465000180 is an abundant number, since it is smaller than the sum of its proper divisors (1977184336140).

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

840465000180 is a wasteful number, since it uses less digits than its factorization.

840465000180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73687 (or 73679 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 840465000180 in words is "eight hundred forty billion, four hundred sixty-five million, one hundred eighty", and thus it is an aban number.