6409878573 has 16 divisors (see below), whose sum is σ = 9777401856. Its totient is φ = 3659049840.

The previous prime is 6409878539. The next prime is 6409878581. The reversal of 6409878573 is 3758789046.

It is not a de Polignac number, because 6409878573 - 2¹⁰ = 6409877549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409878583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134613 + ... + 175898.

It is an arithmetic number, because the mean of its divisors is an integer number (611087616).

Almost surely, 2^6409878573 is an apocalyptic number.

It is an amenable number.

6409878573 is a deficient number, since it is larger than the sum of its proper divisors (3367523283).

6409878573 is a wasteful number, since it uses less digits than its factorization.

6409878573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311504.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The square root of 6409878573 is about 80061.7172748624. The cubic root of 6409878573 is about 1857.5902980895.

The spelling of 6409878573 in words is "six billion, four hundred nine million, eight hundred seventy-eight thousand, five hundred seventy-three".