481581489479 has 4 divisors (see below), whose sum is σ = 481586743176. Its totient is φ = 481576235784.

The previous prime is 481581489469. The next prime is 481581489541. The reversal of 481581489479 is 974984185184.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 481581489479 - 2⁴ = 481581489463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481581489449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486864 + ... + 2673509.

It is an arithmetic number, because the mean of its divisors is an integer number (120396685794).

Almost surely, 2^481581489479 is an apocalyptic number.

481581489479 is a deficient number, since it is larger than the sum of its proper divisors (5253697).

481581489479 is an equidigital number, since it uses as much as digits as its factorization.

481581489479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253696.

The product of its digits is 92897280, while the sum is 68.

The spelling of 481581489479 in words is "four hundred eighty-one billion, five hundred eighty-one million, four hundred eighty-nine thousand, four hundred seventy-nine".