7732081345 has 4 divisors (see below), whose sum is σ = 9278497620. Its totient is φ = 6185665072.

The previous prime is 7732081319. The next prime is 7732081397. The reversal of 7732081345 is 5431802377.

It is a happy number.

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 1132793649 + 6599287696 = 33657^2 + 81236^2 .

It is a cyclic number.

It is not a de Polignac number, because 7732081345 - 2²¹ = 7729984193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7732081298 and 7732081307.

It is an unprimeable number.

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, 773208130 + ... + 773208139.

It is an arithmetic number, because the mean of its divisors is an integer number (2319624405).

Almost surely, 2^7732081345 is an apocalyptic number.

It is an amenable number.

7732081345 is a deficient number, since it is larger than the sum of its proper divisors (1546416275).

7732081345 is a wasteful number, since it uses less digits than its factorization.

7732081345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546416274.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 7732081345 is about 87932.2542927224. The cubic root of 7732081345 is about 1977.4194645747.

The spelling of 7732081345 in words is "seven billion, seven hundred thirty-two million, eighty-one thousand, three hundred forty-five".