8081285120 has 56 divisors (see below), whose sum is σ = 19393998804. Its totient is φ = 3232497664.

The previous prime is 8081285119. The next prime is 8081285131. The reversal of 8081285120 is 215821808.

It can be written as a sum of positive squares in 2 ways, for example, as 7061377024 + 1019908096 = 84032^2 + 31936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57689 + ... + 139608.

Almost surely, 2^8081285120 is an apocalyptic number.

8081285120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8081285120 is an abundant number, since it is smaller than the sum of its proper divisors (11312713684).

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

8081285120 is an equidigital number, since it uses as much as digits as its factorization.

8081285120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197328 (or 197304 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 8081285120 is about 89895.9683189408. The cubic root of 8081285120 is about 2006.7509467195.

It can be divided in two parts, 80 and 81285120, that multiplied together give a square (6502809600 = 80640²).

The spelling of 8081285120 in words is "eight billion, eighty-one million, two hundred eighty-five thousand, one hundred twenty".