832140018640 has 120 divisors (see below), whose sum is σ = 2271633882912. Its totient is φ = 282638603520.

The previous prime is 832140018587. The next prime is 832140018643. The reversal of 832140018640 is 46810041238.

It is a self number, because there is not a number n which added to its sum of digits gives 832140018640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (832140018643) 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 23 ways as a sum of consecutive naturals, for example, 572526 + ... + 1411405.

Almost surely, 2^832140018640 is an apocalyptic number.

832140018640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

832140018640 is an abundant number, since it is smaller than the sum of its proper divisors (1439493864272).

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

832140018640 is a wasteful number, since it uses less digits than its factorization.

832140018640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984065 (or 1984052 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

Adding to 832140018640 its reverse (46810041238), we get a palindrome (878950059878).

The spelling of 832140018640 in words is "eight hundred thirty-two billion, one hundred forty million, eighteen thousand, six hundred forty".