7641545005 has 4 divisors (see below), whose sum is σ = 9169854012. Its totient is φ = 6113236000.

The previous prime is 7641544997. The next prime is 7641545017. The reversal of 7641545005 is 5005451467.

It is a happy number.

7641545005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1128086569 + 6513458436 = 33587^2 + 80706^2 .

It is not a de Polignac number, because 7641545005 - 2³ = 7641544997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764154496 + ... + 764154505.

It is an arithmetic number, because the mean of its divisors is an integer number (2292463503).

Almost surely, 2^7641545005 is an apocalyptic number.

It is an amenable number.

7641545005 is a deficient number, since it is larger than the sum of its proper divisors (1528309007).

7641545005 is a wasteful number, since it uses less digits than its factorization.

7641545005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528309006.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 7641545005 is about 87415.9310709438. The cubic root of 7641545005 is about 1969.6711558261.

The spelling of 7641545005 in words is "seven billion, six hundred forty-one million, five hundred forty-five thousand, five".