7828047985 has 16 divisors (see below), whose sum is σ = 9536716800. Its totient is φ = 6167468736.

The previous prime is 7828047967. The next prime is 7828047991. The reversal of 7828047985 is 5897408287.

7828047985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7828047985 - 2⁹ = 7828047473 is a prime.

It is a super-2 number, since 2×7828047985² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131856 + ... + 181774.

It is an arithmetic number, because the mean of its divisors is an integer number (596044800).

Almost surely, 2^7828047985 is an apocalyptic number.

It is an amenable number.

7828047985 is a deficient number, since it is larger than the sum of its proper divisors (1708668815).

7828047985 is a wasteful number, since it uses less digits than its factorization.

7828047985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50400.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The square root of 7828047985 is about 88476.2566172417. The cubic root of 7828047985 is about 1985.5667567202.

The spelling of 7828047985 in words is "seven billion, eight hundred twenty-eight million, forty-seven thousand, nine hundred eighty-five".