2021785106 has 8 divisors (see below), whose sum is σ = 3308375664. Its totient is φ = 918993220.

The previous prime is 2021785097. The next prime is 2021785121. The reversal of 2021785106 is 6015871202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45949640 + ... + 45949683.

It is an arithmetic number, because the mean of its divisors is an integer number (413546958).

Almost surely, 2^2021785106 is an apocalyptic number.

2021785106 is a deficient number, since it is larger than the sum of its proper divisors (1286590558).

2021785106 is a wasteful number, since it uses less digits than its factorization.

2021785106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91899336.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2021785106 is about 44964.2647665899. The cubic root of 2021785106 is about 1264.4791256479.

The spelling of 2021785106 in words is "two billion, twenty-one million, seven hundred eighty-five thousand, one hundred six".