6739253649 has 16 divisors (see below), whose sum is σ = 10306147840. Its totient is φ = 4347905040.

The previous prime is 6739253627. The next prime is 6739253657. The reversal of 6739253649 is 9463529376.

6739253649 is a `hidden beast` number, since 67 + 3 + 9 + 2 + 536 + 49 = 666.

It is not a de Polignac number, because 6739253649 - 2²³ = 6730865041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6739253595 and 6739253604.

It is not an unprimeable number, because it can be changed into a prime (6739253699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4025002 + ... + 4026675.

It is an arithmetic number, because the mean of its divisors is an integer number (644134240).

Almost surely, 2^6739253649 is an apocalyptic number.

It is an amenable number.

6739253649 is a deficient number, since it is larger than the sum of its proper divisors (3566894191).

6739253649 is a wasteful number, since it uses less digits than its factorization.

6739253649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051717 (or 8051711 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The square root of 6739253649 is about 82092.9573654159. The cubic root of 6739253649 is about 1888.8781122185.

The spelling of 6739253649 in words is "six billion, seven hundred thirty-nine million, two hundred fifty-three thousand, six hundred forty-nine".