33138733487 has 2 divisors, whose sum is σ = 33138733488. Its totient is φ = 33138733486.

The previous prime is 33138733483. The next prime is 33138733489. The reversal of 33138733487 is 78433783133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33138733487 - 2² = 33138733483 is a prime.

Together with 33138733489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33138733483) 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, 16569366743 + 16569366744.

It is an arithmetic number, because the mean of its divisors is an integer number (16569366744).

Almost surely, 2^33138733487 is an apocalyptic number.

33138733487 is a deficient number, since it is larger than the sum of its proper divisors (1).

33138733487 is an equidigital number, since it uses as much as digits as its factorization.

33138733487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 50.

The spelling of 33138733487 in words is "thirty-three billion, one hundred thirty-eight million, seven hundred thirty-three thousand, four hundred eighty-seven".