2021670068 has 12 divisors (see below), whose sum is σ = 3859552032. Its totient is φ = 918940920.

The previous prime is 2021670061. The next prime is 2021670083. The reversal of 2021670068 is 8600761202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021670061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22973480 + ... + 22973567.

It is an arithmetic number, because the mean of its divisors is an integer number (321629336).

Almost surely, 2^2021670068 is an apocalyptic number.

It is an amenable number.

2021670068 is a deficient number, since it is larger than the sum of its proper divisors (1837881964).

2021670068 is a wasteful number, since it uses less digits than its factorization.

2021670068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45947062 (or 45947060 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2021670068 is about 44962.9855325467. The cubic root of 2021670068 is about 1264.4551425667.

The spelling of 2021670068 in words is "two billion, twenty-one million, six hundred seventy thousand, sixty-eight".