461010263981 has 2 divisors, whose sum is σ = 461010263982. Its totient is φ = 461010263980.

The previous prime is 461010263969. The next prime is 461010264019. The reversal of 461010263981 is 189362010164.

461010263981 = 480109² + 480110².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230505612100 + 230504651881 = 480110^2 + 480109^2 .

It is a cyclic number.

It is not a de Polignac number, because 461010263981 - 2²⁶ = 460943155117 is a prime.

It is a super-2 number, since 2×461010263981² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461010263911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230505131990 + 230505131991.

It is an arithmetic number, because the mean of its divisors is an integer number (230505131991).

Almost surely, 2^461010263981 is an apocalyptic number.

461010263981 is the 480110-th centered square number.

It is an amenable number.

461010263981 is a deficient number, since it is larger than the sum of its proper divisors (1).

461010263981 is an equidigital number, since it uses as much as digits as its factorization.

461010263981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 461010263981 in words is "four hundred sixty-one billion, ten million, two hundred sixty-three thousand, nine hundred eighty-one".