2081286162 has 18 divisors (see below), whose sum is σ = 4509872757. Its totient is φ = 693697536.

The previous prime is 2081286143. The next prime is 2081286167. The reversal of 2081286162 is 2616821802.

2081286162 is a `hidden beast` number, since 20 + 8 + 12 + 8 + 616 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1506293721 + 574992441 = 38811^2 + 23979^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=32259.

It is not an unprimeable number, because it can be changed into a prime (2081286167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 188178 + ... + 198930.

Almost surely, 2^2081286162 is an apocalyptic number.

2081286162 is an abundant number, since it is smaller than the sum of its proper divisors (2428586595).

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

2081286162 is an frugal number, since it uses more digits than its factorization.

2081286162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514 (or 10758 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2081286162 is about 45621.1153085937. The cubic root of 2081286162 is about 1276.7639124350.

Multiplying 2081286162 by its product of nonzero digits (18432), we get a square (38362266537984 = 6193728²).

The spelling of 2081286162 in words is "two billion, eighty-one million, two hundred eighty-six thousand, one hundred sixty-two".