7785230445 has 12 divisors (see below), whose sum is σ = 13494399516. Its totient is φ = 4152122880.

The previous prime is 7785230399. The next prime is 7785230483. The reversal of 7785230445 is 5440325877.

It can be written as a sum of positive squares in 2 ways, for example, as 5047534116 + 2737696329 = 71046^2 + 52323^2 .

It is not a de Polignac number, because 7785230445 - 2⁷ = 7785230317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 173005121 = 7785230445 / (7 + 7 + 8 + 5 + 2 + 3 + 0 + 4 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 7785230445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86502516 + ... + 86502605.

It is an arithmetic number, because the mean of its divisors is an integer number (1124533293).

Almost surely, 2^7785230445 is an apocalyptic number.

It is an amenable number.

7785230445 is a deficient number, since it is larger than the sum of its proper divisors (5709169071).

7785230445 is a wasteful number, since it uses less digits than its factorization.

7785230445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173005132 (or 173005129 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The square root of 7785230445 is about 88233.9529036300. The cubic root of 7785230445 is about 1981.9399451739.

The spelling of 7785230445 in words is "seven billion, seven hundred eighty-five million, two hundred thirty thousand, four hundred forty-five".