7291959649 has 8 divisors (see below), whose sum is σ = 7864769192. Its totient is φ = 6720848640.

The previous prime is 7291959611. The next prime is 7291959679. The reversal of 7291959649 is 9469591927.

7291959649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1206867600 + 6085092049 = 34740^2 + 78007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7291959649 - 2¹⁵ = 7291926881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7291959679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415704 + ... + 432889.

It is an arithmetic number, because the mean of its divisors is an integer number (983096149).

Almost surely, 2^7291959649 is an apocalyptic number.

It is an amenable number.

7291959649 is a deficient number, since it is larger than the sum of its proper divisors (572809543).

7291959649 is a wasteful number, since it uses less digits than its factorization.

7291959649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849267.

The product of its digits is 11022480, while the sum is 61.

The square root of 7291959649 is about 85392.9718946472. The cubic root of 7291959649 is about 1939.1649476764.

The spelling of 7291959649 in words is "seven billion, two hundred ninety-one million, nine hundred fifty-nine thousand, six hundred forty-nine".