463460227981 has 2 divisors, whose sum is σ = 463460227982. Its totient is φ = 463460227980.

The previous prime is 463460227949. The next prime is 463460227987. The reversal of 463460227981 is 189722064364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456625899081 + 6834328900 = 675741^2 + 82670^2 .

It is a cyclic number.

It is not a de Polignac number, because 463460227981 - 2⁵ = 463460227949 is a prime.

It is a super-2 number, since 2×463460227981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (463460227987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231730113990 + 231730113991.

It is an arithmetic number, because the mean of its divisors is an integer number (231730113991).

Almost surely, 2^463460227981 is an apocalyptic number.

It is an amenable number.

463460227981 is a deficient number, since it is larger than the sum of its proper divisors (1).

463460227981 is an equidigital number, since it uses as much as digits as its factorization.

463460227981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 463460227981 in words is "four hundred sixty-three billion, four hundred sixty million, two hundred twenty-seven thousand, nine hundred eighty-one".