481821961420853 has 2 divisors, whose sum is σ = 481821961420854. Its totient is φ = 481821961420852.

The previous prime is 481821961420783. The next prime is 481821961420871. The reversal of 481821961420853 is 358024169128184.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339578579364964 + 142243382055889 = 18427658^2 + 11926583^2 .

It is a cyclic number.

It is not a de Polignac number, because 481821961420853 - 2³⁰ = 481820887679029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481821961428853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240910980710426 + 240910980710427.

It is an arithmetic number, because the mean of its divisors is an integer number (240910980710427).

Almost surely, 2^{481821961420853} is an apocalyptic number.

It is an amenable number.

481821961420853 is a deficient number, since it is larger than the sum of its proper divisors (1).

481821961420853 is an equidigital number, since it uses as much as digits as its factorization.

481821961420853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26542080, while the sum is 62.

The spelling of 481821961420853 in words is "four hundred eighty-one trillion, eight hundred twenty-one billion, nine hundred sixty-one million, four hundred twenty thousand, eight hundred fifty-three".