318529485090 has 48 divisors (see below), whose sum is σ = 828279132408. Its totient is φ = 84930686208.

The previous prime is 318529485083. The next prime is 318529485091. The reversal of 318529485090 is 90584925813.

318529485090 is a `hidden beast` number, since 31 + 8 + 529 + 4 + 85 + 0 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 179078773329 + 139450711761 = 423177^2 + 373431^2 .

It is a super-2 number, since 2×318529485090² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (318529485091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526494 + ... + 956166.

Almost surely, 2^318529485090 is an apocalyptic number.

318529485090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

318529485090 is an abundant number, since it is smaller than the sum of its proper divisors (509749647318).

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

318529485090 is a wasteful number, since it uses less digits than its factorization.

318529485090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437923 (or 437920 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 318529485090 in words is "three hundred eighteen billion, five hundred twenty-nine million, four hundred eighty-five thousand, ninety".