2128185703 has 8 divisors (see below), whose sum is σ = 2433249440. Its totient is φ = 1823381280.

The previous prime is 2128185701. The next prime is 2128185727. The reversal of 2128185703 is 3075818212.

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

It is not a de Polignac number, because 2128185703 - 2¹ = 2128185701 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 (2128185701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46908 + ... + 80353.

It is an arithmetic number, because the mean of its divisors is an integer number (304156180).

Almost surely, 2^2128185703 is an apocalyptic number.

2128185703 is a deficient number, since it is larger than the sum of its proper divisors (305063737).

2128185703 is a wasteful number, since it uses less digits than its factorization.

2128185703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129657.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 2128185703 is about 46132.2631463058. The cubic root of 2128185703 is about 1286.2829325466.

The spelling of 2128185703 in words is "two billion, one hundred twenty-eight million, one hundred eighty-five thousand, seven hundred three".