481267228768681 has 8 divisors (see below), whose sum is σ = 509579424431784. Its totient is φ = 452955295180800.

The previous prime is 481267228768663. The next prime is 481267228768757. The reversal of 481267228768681 is 186867822762184.

It can be written as a sum of positive squares in 4 ways, for example, as 258593415105600 + 222673813663081 = 16080840^2 + 14922259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 481267228768681 - 2³⁵ = 481232869030313 is a prime.

It is a super-2 number, since 2×481267228768681² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 481267228768598 and 481267228768607.

It is not an unprimeable number, because it can be changed into a prime (481267228768481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61731780 + ... + 69089413.

It is an arithmetic number, because the mean of its divisors is an integer number (63697428053973).

Almost surely, 2^{481267228768681} is an apocalyptic number.

It is an amenable number.

481267228768681 is a deficient number, since it is larger than the sum of its proper divisors (28312195663103).

481267228768681 is a wasteful number, since it uses less digits than its factorization.

481267228768681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131037611.

The product of its digits is 1387266048, while the sum is 76.

The spelling of 481267228768681 in words is "four hundred eighty-one trillion, two hundred sixty-seven billion, two hundred twenty-eight million, seven hundred sixty-eight thousand, six hundred eighty-one".