6875376649 has 4 divisors (see below), whose sum is σ = 6900935940. Its totient is φ = 6849817360.

The previous prime is 6875376617. The next prime is 6875376659. The reversal of 6875376649 is 9466735786.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3415584249 + 3459792400 = 58443^2 + 58820^2 .

It is a cyclic number.

It is not a de Polignac number, because 6875376649 - 2⁵ = 6875376617 is a prime.

It is a super-2 number, since 2×6875376649² = 94541608131228938402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6875376659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12779242 + ... + 12779779.

It is an arithmetic number, because the mean of its divisors is an integer number (1725233985).

Almost surely, 2^6875376649 is an apocalyptic number.

It is an amenable number.

6875376649 is a deficient number, since it is larger than the sum of its proper divisors (25559291).

6875376649 is a wasteful number, since it uses less digits than its factorization.

6875376649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559290.

The product of its digits is 45722880, while the sum is 61.

The square root of 6875376649 is about 82917.8910067061. The cubic root of 6875376649 is about 1901.5109540676.

The spelling of 6875376649 in words is "six billion, eight hundred seventy-five million, three hundred seventy-six thousand, six hundred forty-nine".