1463644669 has 2 divisors, whose sum is σ = 1463644670. Its totient is φ = 1463644668.

The previous prime is 1463644607. The next prime is 1463644673. The reversal of 1463644669 is 9664463641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1463062500 + 582169 = 38250^2 + 763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1463644669 - 2⁷ = 1463644541 is a prime.

It is a super-2 number, since 2×1463644669² = 4284511434184239122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1463644069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731822334 + 731822335.

It is an arithmetic number, because the mean of its divisors is an integer number (731822335).

Almost surely, 2^1463644669 is an apocalyptic number.

It is an amenable number.

1463644669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463644669 is an equidigital number, since it uses as much as digits as its factorization.

1463644669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 49.

The square root of 1463644669 is about 38257.6092954068. The cubic root of 1463644669 is about 1135.3904015145.

The spelling of 1463644669 in words is "one billion, four hundred sixty-three million, six hundred forty-four thousand, six hundred sixty-nine".