7641145471 has 4 divisors (see below), whose sum is σ = 7641406944. Its totient is φ = 7640884000.

The previous prime is 7641145439. The next prime is 7641145481. The reversal of 7641145471 is 1745411467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7641145471 - 2⁵ = 7641145439 is a prime.

It is a super-3 number, since 3×7641145471³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641145481) by changing a digit.

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, 80455 + ... + 147496.

It is an arithmetic number, because the mean of its divisors is an integer number (1910351736).

Almost surely, 2^7641145471 is an apocalyptic number.

7641145471 is a deficient number, since it is larger than the sum of its proper divisors (261473).

7641145471 is a wasteful number, since it uses less digits than its factorization.

7641145471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261472.

The product of its digits is 94080, while the sum is 40.

The square root of 7641145471 is about 87413.6457940063. The cubic root of 7641145471 is about 1969.6368275016.

The spelling of 7641145471 in words is "seven billion, six hundred forty-one million, one hundred forty-five thousand, four hundred seventy-one".