8019868212 has 24 divisors (see below), whose sum is σ = 20792251200. Its totient is φ = 2673289368.

The previous prime is 8019868211. The next prime is 8019868223. The reversal of 8019868212 is 2128689108.

It is a happy number.

It is a super-2 number, since 2×8019868212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8019868211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37128912 + ... + 37129127.

It is an arithmetic number, because the mean of its divisors is an integer number (866343800).

Almost surely, 2^8019868212 is an apocalyptic number.

It is an amenable number.

8019868212 is an abundant number, since it is smaller than the sum of its proper divisors (12772382988).

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

8019868212 is a wasteful number, since it uses less digits than its factorization.

8019868212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74258052 (or 74258044 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 8019868212 is about 89553.7169077867. The cubic root of 8019868212 is about 2001.6543155760.

The spelling of 8019868212 in words is "eight billion, nineteen million, eight hundred sixty-eight thousand, two hundred twelve".