485478138186 has 12 divisors (see below), whose sum is σ = 1051869299442. Its totient is φ = 161826046056.

The previous prime is 485478138169. The next prime is 485478138191. The reversal of 485478138186 is 681831874584.

It is a happy number.

485478138186 is a `hidden beast` number, since 4 + 8 + 5 + 478 + 1 + 3 + 81 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 334813834161 + 150664304025 = 578631^2 + 388155^2 .

It is a super-2 number, since 2×485478138186² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13485503821 + ... + 13485503856.

Almost surely, 2^485478138186 is an apocalyptic number.

485478138186 is an abundant number, since it is smaller than the sum of its proper divisors (566391161256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485478138186 is a wasteful number, since it uses less digits than its factorization.

485478138186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26971007685 (or 26971007682 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 63.

The spelling of 485478138186 in words is "four hundred eighty-five billion, four hundred seventy-eight million, one hundred thirty-eight thousand, one hundred eighty-six".