2101685005 has 8 divisors (see below), whose sum is σ = 2882310912. Its totient is φ = 1441155408.

The previous prime is 2101684967. The next prime is 2101685009. The reversal of 2101685005 is 5005861012.

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

It is not a de Polignac number, because 2101685005 - 2⁹ = 2101684493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101685009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30024037 + ... + 30024106.

It is an arithmetic number, because the mean of its divisors is an integer number (360288864).

Almost surely, 2^2101685005 is an apocalyptic number.

It is an amenable number.

2101685005 is a deficient number, since it is larger than the sum of its proper divisors (780625907).

2101685005 is an equidigital number, since it uses as much as digits as its factorization.

2101685005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60048155.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 2101685005 is about 45844.1381749074. The cubic root of 2101685005 is about 1280.9215785478.

The spelling of 2101685005 in words is "two billion, one hundred one million, six hundred eighty-five thousand, five".