2021854506 has 32 divisors (see below), whose sum is σ = 4893229440. Its totient is φ = 543691776.

The previous prime is 2021854481. The next prime is 2021854553. The reversal of 2021854506 is 6054581202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1415151 + ... + 1416578.

It is an arithmetic number, because the mean of its divisors is an integer number (152913420).

Almost surely, 2^2021854506 is an apocalyptic number.

2021854506 is an abundant number, since it is smaller than the sum of its proper divisors (2871374934).

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

2021854506 is a wasteful number, since it uses less digits than its factorization.

2021854506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831758.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2021854506 is about 44965.0364839171. The cubic root of 2021854506 is about 1264.4935936951.

The spelling of 2021854506 in words is "two billion, twenty-one million, eight hundred fifty-four thousand, five hundred six".