485375263181 has 4 divisors (see below), whose sum is σ = 485384377500. Its totient is φ = 485366148864.

The previous prime is 485375263169. The next prime is 485375263237. The reversal of 485375263181 is 181362573584.

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 20237623081 + 465137640100 = 142259^2 + 682010^2 .

It is a cyclic number.

It is not a de Polignac number, because 485375263181 - 2²² = 485371068877 is a prime.

It is a super-2 number, since 2×485375263181² (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 (485375263141) 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, 4476806 + ... + 4583943.

It is an arithmetic number, because the mean of its divisors is an integer number (121346094375).

Almost surely, 2^485375263181 is an apocalyptic number.

It is an amenable number.

485375263181 is a deficient number, since it is larger than the sum of its proper divisors (9114319).

485375263181 is an equidigital number, since it uses as much as digits as its factorization.

485375263181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114318.

The product of its digits is 4838400, while the sum is 53.

The spelling of 485375263181 in words is "four hundred eighty-five billion, three hundred seventy-five million, two hundred sixty-three thousand, one hundred eighty-one".