481806380101 has 4 divisors (see below), whose sum is σ = 490897066572. Its totient is φ = 472715693632.

The previous prime is 481806380047. The next prime is 481806380117. The reversal of 481806380101 is 101083608184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 318097128001 + 163709252100 = 564001^2 + 404610^2 .

It is a cyclic number.

It is not a de Polignac number, because 481806380101 - 2²⁵ = 481772825669 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 (481806330101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545343156 + ... + 4545343261.

It is an arithmetic number, because the mean of its divisors is an integer number (122724266643).

Almost surely, 2^481806380101 is an apocalyptic number.

It is an amenable number.

481806380101 is a deficient number, since it is larger than the sum of its proper divisors (9090686471).

481806380101 is an equidigital number, since it uses as much as digits as its factorization.

481806380101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090686470.

The product of its (nonzero) digits is 36864, while the sum is 40.

Adding to 481806380101 its reverse (101083608184), we get a palindrome (582889988285).

The spelling of 481806380101 in words is "four hundred eighty-one billion, eight hundred six million, three hundred eighty thousand, one hundred one".