6840634633 has 4 divisors (see below), whose sum is σ = 7817868160. Its totient is φ = 5863401108.

The previous prime is 6840634609. The next prime is 6840634639. The reversal of 6840634633 is 3364360486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6840634633 - 2²⁹ = 6303763721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6840634633.

It is not an unprimeable number, because it can be changed into a prime (6840634639) 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, 488616753 + ... + 488616766.

It is an arithmetic number, because the mean of its divisors is an integer number (1954467040).

Almost surely, 2^6840634633 is an apocalyptic number.

It is an amenable number.

6840634633 is a deficient number, since it is larger than the sum of its proper divisors (977233527).

6840634633 is an equidigital number, since it uses as much as digits as its factorization.

6840634633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977233526.

The product of its (nonzero) digits is 746496, while the sum is 43.

The square root of 6840634633 is about 82708.1291832913. The cubic root of 6840634633 is about 1898.3026977961.

The spelling of 6840634633 in words is "six billion, eight hundred forty million, six hundred thirty-four thousand, six hundred thirty-three".