461712715438781 has 2 divisors, whose sum is σ = 461712715438782. Its totient is φ = 461712715438780.

The previous prime is 461712715438759. The next prime is 461712715438801. The reversal of 461712715438781 is 187834517217164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400617638239225 + 61095077199556 = 20015435^2 + 7816334^2 .

It is a cyclic number.

It is not a de Polignac number, because 461712715438781 - 2¹⁴ = 461712715422397 is a prime.

It is a super-2 number, since 2×461712715438781² (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 (461712735438781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230856357719390 + 230856357719391.

It is an arithmetic number, because the mean of its divisors is an integer number (230856357719391).

Almost surely, 2^{461712715438781} is an apocalyptic number.

It is an amenable number.

461712715438781 is a deficient number, since it is larger than the sum of its proper divisors (1).

461712715438781 is an equidigital number, since it uses as much as digits as its factorization.

461712715438781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63221760, while the sum is 65.

The spelling of 461712715438781 in words is "four hundred sixty-one trillion, seven hundred twelve billion, seven hundred fifteen million, four hundred thirty-eight thousand, seven hundred eighty-one".