486856081753621 has 2 divisors, whose sum is σ = 486856081753622. Its totient is φ = 486856081753620.

The previous prime is 486856081753577. The next prime is 486856081753667. The reversal of 486856081753621 is 126357180658684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478207718297521 + 8648363456100 = 21867961^2 + 2940810^2 .

It is a cyclic number.

It is not a de Polignac number, because 486856081753621 - 2²¹ = 486856079656469 is a prime.

It is a super-2 number, since 2×486856081753621² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486856081793621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243428040876810 + 243428040876811.

It is an arithmetic number, because the mean of its divisors is an integer number (243428040876811).

Almost surely, 2^{486856081753621} is an apocalyptic number.

It is an amenable number.

486856081753621 is a deficient number, since it is larger than the sum of its proper divisors (1).

486856081753621 is an equidigital number, since it uses as much as digits as its factorization.

486856081753621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 464486400, while the sum is 70.

The spelling of 486856081753621 in words is "four hundred eighty-six trillion, eight hundred fifty-six billion, eighty-one million, seven hundred fifty-three thousand, six hundred twenty-one".