2133556639 has 2 divisors, whose sum is σ = 2133556640. Its totient is φ = 2133556638.

The previous prime is 2133556637. The next prime is 2133556727. The reversal of 2133556639 is 9366553312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2133556639 - 2¹ = 2133556637 is a prime.

Together with 2133556637, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2133556595 and 2133556604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133556637) by changing a digit.

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 as a sum of consecutive naturals, namely, 1066778319 + 1066778320.

It is an arithmetic number, because the mean of its divisors is an integer number (1066778320).

Almost surely, 2^2133556639 is an apocalyptic number.

2133556639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133556639 is an equidigital number, since it uses as much as digits as its factorization.

2133556639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 43.

The square root of 2133556639 is about 46190.4388266663. The cubic root of 2133556639 is about 1287.3640944176.

The spelling of 2133556639 in words is "two billion, one hundred thirty-three million, five hundred fifty-six thousand, six hundred thirty-nine".