7985870826 has 16 divisors (see below), whose sum is σ = 16093664928. Its totient is φ = 2641636400.

The previous prime is 7985870777. The next prime is 7985870831. The reversal of 7985870826 is 6280785897.

It is a self number, because there is not a number n which added to its sum of digits gives 7985870826.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5079285 + ... + 5080856.

It is an arithmetic number, because the mean of its divisors is an integer number (1005854058).

Almost surely, 2^7985870826 is an apocalyptic number.

7985870826 is an abundant number, since it is smaller than the sum of its proper divisors (8107794102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7985870826 is a wasteful number, since it uses less digits than its factorization.

7985870826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10160277.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The square root of 7985870826 is about 89363.6997107886. The cubic root of 7985870826 is about 1998.8218749803.

The spelling of 7985870826 in words is "seven billion, nine hundred eighty-five million, eight hundred seventy thousand, eight hundred twenty-six".