481818837181 has 12 divisors (see below), whose sum is σ = 530384892156. Its totient is φ = 437370053120.

The previous prime is 481818837151. The next prime is 481818837193. The reversal of 481818837181 is 181738818184.

It can be written as a sum of positive squares in 2 ways, for example, as 369774664281 + 112044172900 = 608091^2 + 334730^2 .

It is not a de Polignac number, because 481818837181 - 2⁹ = 481818836669 is a prime.

It is a super-2 number, since 2×481818837181² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481818837131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2858980 + ... + 3022813.

It is an arithmetic number, because the mean of its divisors is an integer number (44198741013).

Almost surely, 2^481818837181 is an apocalyptic number.

It is an amenable number.

481818837181 is a deficient number, since it is larger than the sum of its proper divisors (48566054975).

481818837181 is a wasteful number, since it uses less digits than its factorization.

481818837181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882492 (or 5882481 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 58.

The spelling of 481818837181 in words is "four hundred eighty-one billion, eight hundred eighteen million, eight hundred thirty-seven thousand, one hundred eighty-one".