6409158317 has 4 divisors (see below), whose sum is σ = 6410211516. Its totient is φ = 6408105120.

The previous prime is 6409158277. The next prime is 6409158331. The reversal of 6409158317 is 7138519046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7138519046 = 2 ⋅3569259523.

It can be written as a sum of positive squares in 2 ways, for example, as 1393827556 + 5015330761 = 37334^2 + 70819^2 .

It is a cyclic number.

It is not a de Polignac number, because 6409158317 - 2¹⁸ = 6408896173 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 (6409158397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517418 + ... + 529659.

It is an arithmetic number, because the mean of its divisors is an integer number (1602552879).

Almost surely, 2^6409158317 is an apocalyptic number.

It is an amenable number.

6409158317 is a deficient number, since it is larger than the sum of its proper divisors (1053199).

6409158317 is a wasteful number, since it uses less digits than its factorization.

6409158317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053198.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 6409158317 is about 80057.2190186494. The cubic root of 6409158317 is about 1857.5207184732.

The spelling of 6409158317 in words is "six billion, four hundred nine million, one hundred fifty-eight thousand, three hundred seventeen".