2102386389 has 4 divisors (see below), whose sum is σ = 2803181856. Its totient is φ = 1401590924.

The previous prime is 2102386339. The next prime is 2102386421. The reversal of 2102386389 is 9836832012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102386389 - 2⁹ = 2102385877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102386389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102386339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350397729 + ... + 350397734.

It is an arithmetic number, because the mean of its divisors is an integer number (700795464).

Almost surely, 2^2102386389 is an apocalyptic number.

It is an amenable number.

2102386389 is a deficient number, since it is larger than the sum of its proper divisors (700795467).

2102386389 is an equidigital number, since it uses as much as digits as its factorization.

2102386389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700795466.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2102386389 is about 45851.7871952664. The cubic root of 2102386389 is about 1281.0640543828.

The spelling of 2102386389 in words is "two billion, one hundred two million, three hundred eighty-six thousand, three hundred eighty-nine".