7685764243 has 4 divisors (see below), whose sum is σ = 8137868040. Its totient is φ = 7233660448.

The previous prime is 7685764223. The next prime is 7685764267. The reversal of 7685764243 is 3424675867.

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 7685764243 - 2²⁵ = 7652209811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7685764213) 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, 226051873 + ... + 226051906.

It is an arithmetic number, because the mean of its divisors is an integer number (2034467010).

Almost surely, 2^7685764243 is an apocalyptic number.

7685764243 is a deficient number, since it is larger than the sum of its proper divisors (452103797).

7685764243 is a wasteful number, since it uses less digits than its factorization.

7685764243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452103796.

The product of its digits is 6773760, while the sum is 52.

The square root of 7685764243 is about 87668.4905938274. The cubic root of 7685764243 is about 1973.4631417765.

The spelling of 7685764243 in words is "seven billion, six hundred eighty-five million, seven hundred sixty-four thousand, two hundred forty-three".