2640832843 has 4 divisors (see below), whose sum is σ = 2880908568. Its totient is φ = 2400757120.

The previous prime is 2640832841. The next prime is 2640832877. The reversal of 2640832843 is 3482380462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2640832843 - 2¹ = 2640832841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2640832796 and 2640832805.

It is not an unprimeable number, because it can be changed into a prime (2640832841) 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 3 ways as a sum of consecutive naturals, for example, 120037846 + ... + 120037867.

It is an arithmetic number, because the mean of its divisors is an integer number (720227142).

Almost surely, 2^2640832843 is an apocalyptic number.

2640832843 is a deficient number, since it is larger than the sum of its proper divisors (240075725).

2640832843 is a wasteful number, since it uses less digits than its factorization.

2640832843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240075724.

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 2640832843 is about 51389.0342680226. The cubic root of 2640832843 is about 1382.2299665202.

The spelling of 2640832843 in words is "two billion, six hundred forty million, eight hundred thirty-two thousand, eight hundred forty-three".