784312156996 has 9 divisors (see below), whose sum is σ = 1372549374399. Its totient is φ = 392155192884.

The previous prime is 784312156963. The next prime is 784312157003. The reversal of 784312156996 is 699651213487.

The square root of 784312156996 is 885614.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×784312156996² (a number of 25 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 (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1549825 + ... + 1992631.

Almost surely, 2^784312156996 is an apocalyptic number.

784312156996 is the 885614-th square number.

It is an amenable number.

784312156996 is a deficient number, since it is larger than the sum of its proper divisors (588237217403).

784312156996 is an frugal number, since it uses more digits than its factorization.

784312156996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885618 (or 442809 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 784312156996 in words is "seven hundred eighty-four billion, three hundred twelve million, one hundred fifty-six thousand, nine hundred ninety-six".