2102872385 has 16 divisors (see below), whose sum is σ = 2572485696. Its totient is φ = 1649828928.

The previous prime is 2102872381. The next prime is 2102872399. The reversal of 2102872385 is 5832782012.

It is a cyclic number.

It is not a de Polignac number, because 2102872385 - 2² = 2102872381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102872381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62219 + ... + 89871.

It is an arithmetic number, because the mean of its divisors is an integer number (160780356).

Almost surely, 2^2102872385 is an apocalyptic number.

It is an amenable number.

2102872385 is a deficient number, since it is larger than the sum of its proper divisors (469613311).

2102872385 is a wasteful number, since it uses less digits than its factorization.

2102872385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27952.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2102872385 is about 45857.0865297829. The cubic root of 2102872385 is about 1281.1627587316.

The spelling of 2102872385 in words is "two billion, one hundred two million, eight hundred seventy-two thousand, three hundred eighty-five".