2129205536 has 24 divisors (see below), whose sum is σ = 4194450540. Its totient is φ = 1063948288.

The previous prime is 2129205503. The next prime is 2129205541. The reversal of 2129205536 is 6355029212.

It can be written as a sum of positive squares in 2 ways, for example, as 1476096400 + 653109136 = 38420^2 + 25556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2129205496 and 2129205505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34700 + ... + 73908.

Almost surely, 2^2129205536 is an apocalyptic number.

It is an amenable number.

2129205536 is a deficient number, since it is larger than the sum of its proper divisors (2065245004).

2129205536 is a wasteful number, since it uses less digits than its factorization.

2129205536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40916 (or 40908 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2129205536 is about 46143.3151821583. The cubic root of 2129205536 is about 1286.4883632878.

The spelling of 2129205536 in words is "two billion, one hundred twenty-nine million, two hundred five thousand, five hundred thirty-six".