9819870846 has 16 divisors (see below), whose sum is σ = 20010303504. Its totient is φ = 3211529984.

The previous prime is 9819870839. The next prime is 9819870857. The reversal of 9819870846 is 6480789189.

It is a self number, because there is not a number n which added to its sum of digits gives 9819870846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15439731 + ... + 15440366.

It is an arithmetic number, because the mean of its divisors is an integer number (1250643969).

Almost surely, 2^9819870846 is an apocalyptic number.

9819870846 is an abundant number, since it is smaller than the sum of its proper divisors (10190432658).

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

9819870846 is a wasteful number, since it uses less digits than its factorization.

9819870846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30880155.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The square root of 9819870846 is about 99095.2614709704. The cubic root of 9819870846 is about 2141.4203490466.

The spelling of 9819870846 in words is "nine billion, eight hundred nineteen million, eight hundred seventy thousand, eight hundred forty-six".