6800737649 has 4 divisors (see below), whose sum is σ = 6902241264. Its totient is φ = 6699234036.

The previous prime is 6800737633. The next prime is 6800737661. The reversal of 6800737649 is 9467370086.

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 6800737649 - 2⁴ = 6800737633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6800737597 and 6800737606.

It is not an unprimeable number, because it can be changed into a prime (6800737049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50751707 + ... + 50751840.

It is an arithmetic number, because the mean of its divisors is an integer number (1725560316).

Almost surely, 2^6800737649 is an apocalyptic number.

It is an amenable number.

6800737649 is a deficient number, since it is larger than the sum of its proper divisors (101503615).

6800737649 is a wasteful number, since it uses less digits than its factorization.

6800737649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101503614.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 6800737649 is about 82466.5850450957. The cubic root of 6800737649 is about 1894.6049769407.

The spelling of 6800737649 in words is "six billion, eight hundred million, seven hundred thirty-seven thousand, six hundred forty-nine".