8138281004 has 24 divisors (see below), whose sum is σ = 17234007840. Its totient is φ = 3282667776.

The previous prime is 8138280989. The next prime is 8138281037. The reversal of 8138281004 is 4001828318.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8548139 + ... + 8549090.

It is an arithmetic number, because the mean of its divisors is an integer number (718083660).

Almost surely, 2^8138281004 is an apocalyptic number.

It is an amenable number.

8138281004 is an abundant number, since it is smaller than the sum of its proper divisors (9095726836).

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

8138281004 is a wasteful number, since it uses less digits than its factorization.

8138281004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17097257 (or 17097255 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 8138281004 is about 90212.4215615566. The cubic root of 8138281004 is about 2011.4576527521.

The spelling of 8138281004 in words is "eight billion, one hundred thirty-eight million, two hundred eighty-one thousand, four".