6821256954283 has 2 divisors, whose sum is σ = 6821256954284. Its totient is φ = 6821256954282.

The previous prime is 6821256954191. The next prime is 6821256954293. The reversal of 6821256954283 is 3824596521286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6821256954283 - 2¹⁷ = 6821256823211 is a prime.

It is not a weakly prime, because it can be changed into another prime (6821256954293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410628477141 + 3410628477142.

It is an arithmetic number, because the mean of its divisors is an integer number (3410628477142).

Almost surely, 2^{6821256954283} is an apocalyptic number.

6821256954283 is a deficient number, since it is larger than the sum of its proper divisors (1).

6821256954283 is an equidigital number, since it uses as much as digits as its factorization.

6821256954283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49766400, while the sum is 61.

The spelling of 6821256954283 in words is "six trillion, eight hundred twenty-one billion, two hundred fifty-six million, nine hundred fifty-four thousand, two hundred eighty-three".