2127603821 has 16 divisors (see below), whose sum is σ = 2550839040. Its totient is φ = 1735964160.

The previous prime is 2127603791. The next prime is 2127603833. The reversal of 2127603821 is 1283067212.

It is not a de Polignac number, because 2127603821 - 2³⁰ = 1053861997 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 (2127603421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59396 + ... + 88221.

It is an arithmetic number, because the mean of its divisors is an integer number (159427440).

Almost surely, 2^2127603821 is an apocalyptic number.

It is an amenable number.

2127603821 is a deficient number, since it is larger than the sum of its proper divisors (423235219).

2127603821 is a wasteful number, since it uses less digits than its factorization.

2127603821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147724.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2127603821 is about 46125.9560442925. The cubic root of 2127603821 is about 1286.1656913508.

The spelling of 2127603821 in words is "two billion, one hundred twenty-seven million, six hundred three thousand, eight hundred twenty-one".