8427312612 has 18 divisors (see below), whose sum is σ = 21302373638. Its totient is φ = 2809104192.

The previous prime is 8427312601. The next prime is 8427312643. The reversal of 8427312612 is 2162137248.

It is a happy number.

8427312612 is a `hidden beast` number, since 8 + 4 + 2 + 7 + 31 + 2 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8299938816 + 127373796 = 91104^2 + 11286^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×8427312612³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 234092017 = 8427312612 / (8 + 4 + 2 + 7 + 3 + 1 + 2 + 6 + 1 + 2).

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 5 ways as a sum of consecutive naturals, for example, 117045973 + ... + 117046044.

Almost surely, 2^8427312612 is an apocalyptic number.

It is an amenable number.

8427312612 is an abundant number, since it is smaller than the sum of its proper divisors (12875061026).

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

8427312612 is a wasteful number, since it uses less digits than its factorization.

8427312612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234092027 (or 234092022 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8427312612 is about 91800.3954893442. The cubic root of 8427312612 is about 2034.9935394918.

The spelling of 8427312612 in words is "eight billion, four hundred twenty-seven million, three hundred twelve thousand, six hundred twelve".