481718491 has 2 divisors, whose sum is σ = 481718492. Its totient is φ = 481718490.

The previous prime is 481718483. The next prime is 481718513. The reversal of 481718491 is 194817184.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481718491 - 2³ = 481718483 is a prime.

It is not a weakly prime, because it can be changed into another prime (481718791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240859245 + 240859246.

It is an arithmetic number, because the mean of its divisors is an integer number (240859246).

Almost surely, 2^481718491 is an apocalyptic number.

481718491 is a deficient number, since it is larger than the sum of its proper divisors (1).

481718491 is an equidigital number, since it uses as much as digits as its factorization.

481718491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 43.

The square root of 481718491 is about 21948.0862719281. The cubic root of 481718491 is about 783.9068132292.

The spelling of 481718491 in words is "four hundred eighty-one million, seven hundred eighteen thousand, four hundred ninety-one".