7145566747 has 4 divisors (see below), whose sum is σ = 7795163736. Its totient is φ = 6495969760.

The previous prime is 7145566733. The next prime is 7145566781. The reversal of 7145566747 is 7476655417.

It is a happy number.

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 7145566747 - 2¹⁵ = 7145533979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7145566694 and 7145566703.

It is not an unprimeable number, because it can be changed into a prime (7145561747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324798478 + ... + 324798499.

It is an arithmetic number, because the mean of its divisors is an integer number (1948790934).

Almost surely, 2^7145566747 is an apocalyptic number.

7145566747 is a deficient number, since it is larger than the sum of its proper divisors (649596989).

7145566747 is a wasteful number, since it uses less digits than its factorization.

7145566747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649596988.

The product of its digits is 4939200, while the sum is 52.

The square root of 7145566747 is about 84531.4541871841. The cubic root of 7145566747 is about 1926.1002758790.

The spelling of 7145566747 in words is "seven billion, one hundred forty-five million, five hundred sixty-six thousand, seven hundred forty-seven".