6463331487873 has 96 divisors (see below), whose sum is σ = 10987510320000. Its totient is φ = 3742799374080.

The previous prime is 6463331487829. The next prime is 6463331487887. The reversal of 6463331487873 is 3787841333646.

It is a happy number.

6463331487873 is a `hidden beast` number, since 6 + 46 + 3 + 3 + 31 + 487 + 87 + 3 = 666.

It is not a de Polignac number, because 6463331487873 - 2²⁵ = 6463297933441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6463331487873.

It is not an unprimeable number, because it can be changed into a prime (6463331487803) 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 95 ways as a sum of consecutive naturals, for example, 12667683 + ... + 13168023.

It is an arithmetic number, because the mean of its divisors is an integer number (114453232500).

Almost surely, 2^{6463331487873} is an apocalyptic number.

It is an amenable number.

6463331487873 is a deficient number, since it is larger than the sum of its proper divisors (4524178832127).

6463331487873 is a wasteful number, since it uses less digits than its factorization.

6463331487873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500544 (or 500525 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 63.

The spelling of 6463331487873 in words is "six trillion, four hundred sixty-three billion, three hundred thirty-one million, four hundred eighty-seven thousand, eight hundred seventy-three".