820675497063 has 16 divisors (see below), whose sum is σ = 1159055416800. Its totient is φ = 514731549696.

The previous prime is 820675496983. The next prime is 820675497077. The reversal of 820675497063 is 360794576028.

It is not a de Polignac number, because 820675497063 - 2²⁰ = 820674448487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 820675496994 and 820675497012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820675498063) 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, 3026470 + ... + 3286467.

It is an arithmetic number, because the mean of its divisors is an integer number (72440963550).

Almost surely, 2^820675497063 is an apocalyptic number.

820675497063 is a deficient number, since it is larger than the sum of its proper divisors (338379919737).

820675497063 is a wasteful number, since it uses less digits than its factorization.

820675497063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315506.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 820675497063 in words is "eight hundred twenty billion, six hundred seventy-five million, four hundred ninety-seven thousand, sixty-three".