846466224240 has 640 divisors, whose sum is σ = 3351385497600. Its totient is φ = 171960827904.

The previous prime is 846466224223. The next prime is 846466224259. The reversal of 846466224240 is 42422664648.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 846466224240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 78378361 + ... + 78389159.

It is an arithmetic number, because the mean of its divisors is an integer number (5236539840).

Almost surely, 2^846466224240 is an apocalyptic number.

846466224240 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 846466224240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675692748800).

846466224240 is an abundant number, since it is smaller than the sum of its proper divisors (2504919273360).

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

846466224240 is a wasteful number, since it uses less digits than its factorization.

846466224240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10969 (or 10963 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 48.

Adding to 846466224240 its reverse (42422664648), we get a palindrome (888888888888).

The spelling of 846466224240 in words is "eight hundred forty-six billion, four hundred sixty-six million, two hundred twenty-four thousand, two hundred forty".