33887384149 has 2 divisors, whose sum is σ = 33887384150. Its totient is φ = 33887384148.

The previous prime is 33887384101. The next prime is 33887384159. The reversal of 33887384149 is 94148378833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33191374225 + 696009924 = 182185^2 + 26382^2 .

It is an emirp because it is prime and its reverse (94148378833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33887384149 - 2⁷ = 33887384021 is a prime.

It is a super-2 number, since 2×33887384149² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33887384093 and 33887384102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33887384159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16943692074 + 16943692075.

It is an arithmetic number, because the mean of its divisors is an integer number (16943692075).

Almost surely, 2^33887384149 is an apocalyptic number.

It is an amenable number.

33887384149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33887384149 is an equidigital number, since it uses as much as digits as its factorization.

33887384149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 58.

The spelling of 33887384149 in words is "thirty-three billion, eight hundred eighty-seven million, three hundred eighty-four thousand, one hundred forty-nine".