7828565863 has 16 divisors (see below), whose sum is σ = 8247290400. Its totient is φ = 7420120960.

The previous prime is 7828565851. The next prime is 7828565897. The reversal of 7828565863 is 3685658287.

It is a happy number.

It is not a de Polignac number, because 7828565863 - 2⁵ = 7828565831 is a prime.

It is a super-2 number, since 2×7828565863² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7828565798 and 7828565807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828565803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401945 + ... + 1407517.

It is an arithmetic number, because the mean of its divisors is an integer number (515455650).

Almost surely, 2^7828565863 is an apocalyptic number.

7828565863 is a deficient number, since it is larger than the sum of its proper divisors (418724537).

7828565863 is a wasteful number, since it uses less digits than its factorization.

7828565863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482.

The product of its digits is 19353600, while the sum is 58.

The square root of 7828565863 is about 88479.1832184271. The cubic root of 7828565863 is about 1985.6105419511.

The spelling of 7828565863 in words is "seven billion, eight hundred twenty-eight million, five hundred sixty-five thousand, eight hundred sixty-three".