8624778485 has 4 divisors (see below), whose sum is σ = 10349734188. Its totient is φ = 6899822784.

The previous prime is 8624778443. The next prime is 8624778499. The reversal of 8624778485 is 5848774268.

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 3508666756 + 5116111729 = 59234^2 + 71527^2 .

It is a cyclic number.

It is not a de Polignac number, because 8624778485 - 2¹⁰ = 8624777461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862477844 + ... + 862477853.

It is an arithmetic number, because the mean of its divisors is an integer number (2587433547).

Almost surely, 2^8624778485 is an apocalyptic number.

It is an amenable number.

8624778485 is a deficient number, since it is larger than the sum of its proper divisors (1724955703).

8624778485 is a wasteful number, since it uses less digits than its factorization.

8624778485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724955702.

The product of its digits is 24084480, while the sum is 59.

The square root of 8624778485 is about 92869.6855007058. The cubic root of 8624778485 is about 2050.7654080173.

The spelling of 8624778485 in words is "eight billion, six hundred twenty-four million, seven hundred seventy-eight thousand, four hundred eighty-five".