2068815528 has 72 divisors (see below), whose sum is σ = 6067235070. Its totient is φ = 636554880.

The previous prime is 2068815517. The next prime is 2068815563. The reversal of 2068815528 is 8255188602.

It can be written as a sum of positive squares in 3 ways, for example, as 1107691524 + 961124004 = 33282^2 + 31002^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72843 + ... + 97178.

Almost surely, 2^2068815528 is an apocalyptic number.

It is an amenable number.

2068815528 is an abundant number, since it is smaller than the sum of its proper divisors (3998419542).

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

2068815528 is a wasteful number, since it uses less digits than its factorization.

2068815528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170059 (or 170039 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 2068815528 is about 45484.2338398703. The cubic root of 2068815528 is about 1274.2087676759.

The spelling of 2068815528 in words is "two billion, sixty-eight million, eight hundred fifteen thousand, five hundred twenty-eight".