85480831485 has 72 divisors (see below), whose sum is σ = 182496011256. Its totient is φ = 36778291200.

The previous prime is 85480831463. The next prime is 85480831511. The reversal of 85480831485 is 58413808458.

85480831485 is a `hidden beast` number, since 8 + 5 + 4 + 80 + 83 + 1 + 485 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 42275883321 + 43204948164 = 205611^2 + 207858^2 .

It is not a de Polignac number, because 85480831485 - 2⁵ = 85480831453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1102716 + ... + 1177685.

It is an arithmetic number, because the mean of its divisors is an integer number (2534666823).

Almost surely, 2^85480831485 is an apocalyptic number.

85480831485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85480831485 is an abundant number, since it is smaller than the sum of its proper divisors (97015179771).

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

85480831485 is a wasteful number, since it uses less digits than its factorization.

85480831485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280443 (or 2280433 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 54.

The spelling of 85480831485 in words is "eighty-five billion, four hundred eighty million, eight hundred thirty-one thousand, four hundred eighty-five".