7649844445 has 4 divisors (see below), whose sum is σ = 9179813340. Its totient is φ = 6119875552.

The previous prime is 7649844427. The next prime is 7649844451. The reversal of 7649844445 is 5444489467.

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 2392579396 + 5257265049 = 48914^2 + 72507^2 .

It is a cyclic number.

It is not a de Polignac number, because 7649844445 - 2²⁵ = 7616290013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764984440 + ... + 764984449.

It is an arithmetic number, because the mean of its divisors is an integer number (2294953335).

Almost surely, 2^7649844445 is an apocalyptic number.

It is an amenable number.

7649844445 is a deficient number, since it is larger than the sum of its proper divisors (1529968895).

7649844445 is a wasteful number, since it uses less digits than its factorization.

7649844445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529968894.

The product of its digits is 15482880, while the sum is 55.

The square root of 7649844445 is about 87463.3891694119. The cubic root of 7649844445 is about 1970.3839808262.

The spelling of 7649844445 in words is "seven billion, six hundred forty-nine million, eight hundred forty-four thousand, four hundred forty-five".