2129189046020 has 12 divisors (see below), whose sum is σ = 4471296996684. Its totient is φ = 851675618400.

The previous prime is 2129189045993. The next prime is 2129189046043. The reversal of 2129189046020 is 206409819212.

It can be written as a sum of positive squares in 2 ways, for example, as 659512906816 + 1469676139204 = 812104^2 + 1212302^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53229726131 + ... + 53229726170.

It is an arithmetic number, because the mean of its divisors is an integer number (372608083057).

Almost surely, 2^{2129189046020} is an apocalyptic number.

2129189046020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129189046020 is an abundant number, since it is smaller than the sum of its proper divisors (2342107950664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2129189046020 is a wasteful number, since it uses less digits than its factorization.

2129189046020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106459452310 (or 106459452308 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 2129189046020 in words is "two trillion, one hundred twenty-nine billion, one hundred eighty-nine million, forty-six thousand, twenty".