8216120892 has 48 divisors (see below), whose sum is σ = 22122394112. Its totient is φ = 2324669760.

The previous prime is 8216120879. The next prime is 8216120909. The reversal of 8216120892 is 2980216128.

It is a self number, because there is not a number n which added to its sum of digits gives 8216120892.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466159 + ... + 483462.

Almost surely, 2^8216120892 is an apocalyptic number.

It is an amenable number.

8216120892 is an abundant number, since it is smaller than the sum of its proper divisors (13906273220).

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

8216120892 is a wasteful number, since it uses less digits than its factorization.

8216120892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949738 (or 949736 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 8216120892 is about 90642.8204106646. The cubic root of 8216120892 is about 2017.8502840396.

The spelling of 8216120892 in words is "eight billion, two hundred sixteen million, one hundred twenty thousand, eight hundred ninety-two".