8026139412 has 36 divisors (see below), whose sum is σ = 20987896020. Its totient is φ = 2583124992.

The previous prime is 8026139393. The next prime is 8026139423. The reversal of 8026139412 is 2149316208.

8026139412 is a `hidden beast` number, since 8 + 0 + 261 + 394 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5540718096 + 2485421316 = 74436^2 + 49854^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 3842893 + ... + 3844980.

Almost surely, 2^8026139412 is an apocalyptic number.

It is an amenable number.

8026139412 is an abundant number, since it is smaller than the sum of its proper divisors (12961756608).

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

8026139412 is a wasteful number, since it uses less digits than its factorization.

8026139412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7687912 (or 7687907 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8026139412 is about 89588.7236877499. The cubic root of 8026139412 is about 2002.1759161692.

The spelling of 8026139412 in words is "eight billion, twenty-six million, one hundred thirty-nine thousand, four hundred twelve".