870949650828 has 24 divisors (see below), whose sum is σ = 2032232087088. Its totient is φ = 290314230976.

The previous prime is 870949650803. The next prime is 870949650853. The reversal of 870949650828 is 828056949078.

It is an interprime number because it is at equal distance from previous prime (870949650803) and next prime (870949650853).

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, 1995250 + ... + 2392262.

It is an arithmetic number, because the mean of its divisors is an integer number (84676336962).

Almost surely, 2^870949650828 is an apocalyptic number.

It is an amenable number.

870949650828 is an abundant number, since it is smaller than the sum of its proper divisors (1161282436260).

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

870949650828 is a wasteful number, since it uses less digits than its factorization.

870949650828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579833 (or 579831 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 870949650828 in words is "eight hundred seventy billion, nine hundred forty-nine million, six hundred fifty thousand, eight hundred twenty-eight".