2129463629 has 2 divisors, whose sum is σ = 2129463630. Its totient is φ = 2129463628.

The previous prime is 2129463599. The next prime is 2129463631. The reversal of 2129463629 is 9263649212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1503112900 + 626350729 = 38770^2 + 25027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129463629 - 2¹⁶ = 2129398093 is a prime.

It is a Sophie Germain prime.

Together with 2129463631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129463629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129463659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064731814 + 1064731815.

It is an arithmetic number, because the mean of its divisors is an integer number (1064731815).

Almost surely, 2^2129463629 is an apocalyptic number.

It is an amenable number.

2129463629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129463629 is an equidigital number, since it uses as much as digits as its factorization.

2129463629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 2129463629 is about 46146.1117430277. Note that the first 3 decimals coincide. The cubic root of 2129463629 is about 1286.5403420220.

The spelling of 2129463629 in words is "two billion, one hundred twenty-nine million, four hundred sixty-three thousand, six hundred twenty-nine".