6520238487873 has 48 divisors (see below), whose sum is σ = 10333995984000. Its totient is φ = 3928736528640.

The previous prime is 6520238487863. The next prime is 6520238487937. The reversal of 6520238487873 is 3787848320256.

6520238487873 is a `hidden beast` number, since 6 + 52 + 0 + 2 + 38 + 487 + 8 + 73 = 666.

It is not a de Polignac number, because 6520238487873 - 2⁸ = 6520238487617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6520238487873.

It is not an unprimeable number, because it can be changed into a prime (6520238487863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25266211 + ... + 25522967.

It is an arithmetic number, because the mean of its divisors is an integer number (215291583000).

Almost surely, 2^{6520238487873} is an apocalyptic number.

It is an amenable number.

6520238487873 is a deficient number, since it is larger than the sum of its proper divisors (3813757496127).

6520238487873 is a wasteful number, since it uses less digits than its factorization.

6520238487873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258262 (or 258259 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 6520238487873 in words is "six trillion, five hundred twenty billion, two hundred thirty-eight million, four hundred eighty-seven thousand, eight hundred seventy-three".