481818181823 has 32 divisors (see below), whose sum is σ = 559021616640. Its totient is φ = 410919949440.

The previous prime is 481818181751. The next prime is 481818181843. The reversal of 481818181823 is 328181818184.

It is not a de Polignac number, because 481818181823 - 2²² = 481813987519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481818181843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54878648 + ... + 54887426.

It is an arithmetic number, because the mean of its divisors is an integer number (17469425520).

Almost surely, 2^481818181823 is an apocalyptic number.

481818181823 is a deficient number, since it is larger than the sum of its proper divisors (77203434817).

481818181823 is a wasteful number, since it uses less digits than its factorization.

481818181823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959.

The product of its digits is 786432, while the sum is 53.

The spelling of 481818181823 in words is "four hundred eighty-one billion, eight hundred eighteen million, one hundred eighty-one thousand, eight hundred twenty-three".