6820455257050 has 12 divisors (see below), whose sum is σ = 12686046778206. Its totient is φ = 2728182102800.

The previous prime is 6820455256991. The next prime is 6820455257051. The reversal of 6820455257050 is 507525540286.

It can be written as a sum of positive squares in 3 ways, for example, as 5413221116689 + 1407234140361 = 2326633^2 + 1186269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6820455256985 and 6820455257003.

It is not an unprimeable number, because it can be changed into a prime (6820455257051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68204552521 + ... + 68204552620.

Almost surely, 2^{6820455257050} is an apocalyptic number.

6820455257050 is a deficient number, since it is larger than the sum of its proper divisors (5865591521156).

6820455257050 is a wasteful number, since it uses less digits than its factorization.

6820455257050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136409105153 (or 136409105148 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 49.

The spelling of 6820455257050 in words is "six trillion, eight hundred twenty billion, four hundred fifty-five million, two hundred fifty-seven thousand, fifty".