7828078075 has 6 divisors (see below), whose sum is σ = 9706816844. Its totient is φ = 6262462440.

The previous prime is 7828078031. The next prime is 7828078081. The reversal of 7828078075 is 5708708287.

It is a happy number.

It is not a de Polignac number, because 7828078075 - 2⁷ = 7828077947 is a prime.

It is a super-2 number, since 2×7828078075² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156561537 + ... + 156561586.

Almost surely, 2^7828078075 is an apocalyptic number.

7828078075 is a deficient number, since it is larger than the sum of its proper divisors (1878738769).

7828078075 is a wasteful number, since it uses less digits than its factorization.

7828078075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313123133 (or 313123128 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 52.

The square root of 7828078075 is about 88476.4266626993. The cubic root of 7828078075 is about 1985.5693008039.

The spelling of 7828078075 in words is "seven billion, eight hundred twenty-eight million, seventy-eight thousand, seventy-five".