8315438293 has 16 divisors (see below), whose sum is σ = 9465189120. Its totient is φ = 7256618496.

The previous prime is 8315438291. The next prime is 8315438297. The reversal of 8315438293 is 3928345138.

It is a cyclic number.

It is not a de Polignac number, because 8315438293 - 2¹ = 8315438291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8315438291) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 258696 + ... + 289057.

It is an arithmetic number, because the mean of its divisors is an integer number (591574320).

Almost surely, 2^8315438293 is an apocalyptic number.

It is an amenable number.

8315438293 is a deficient number, since it is larger than the sum of its proper divisors (1149750827).

8315438293 is a wasteful number, since it uses less digits than its factorization.

8315438293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547836.

The product of its digits is 622080, while the sum is 46.

The square root of 8315438293 is about 91189.0250688097. The cubic root of 8315438293 is about 2025.9484084998.

The spelling of 8315438293 in words is "eight billion, three hundred fifteen million, four hundred thirty-eight thousand, two hundred ninety-three".