2021685675 has 24 divisors (see below), whose sum is σ = 3373199280. Its totient is φ = 1068336000.

The previous prime is 2021685637. The next prime is 2021685707. The reversal of 2021685675 is 5765861202.

It is not a de Polignac number, because 2021685675 - 2¹¹ = 2021683627 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115476 + ... + 131825.

It is an arithmetic number, because the mean of its divisors is an integer number (140549970).

Almost surely, 2^2021685675 is an apocalyptic number.

2021685675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2021685675 is a deficient number, since it is larger than the sum of its proper divisors (1351513605).

2021685675 is a wasteful number, since it uses less digits than its factorization.

2021685675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247423 (or 247418 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 2021685675 is about 44963.1590860785. The cubic root of 2021685675 is about 1264.4583963619.

The spelling of 2021685675 in words is "two billion, twenty-one million, six hundred eighty-five thousand, six hundred seventy-five".