33876067921 has 2 divisors, whose sum is σ = 33876067922. Its totient is φ = 33876067920.

The previous prime is 33876067829. The next prime is 33876067931. The reversal of 33876067921 is 12976067833.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17972083600 + 15903984321 = 134060^2 + 126111^2 .

It is a cyclic number.

It is not a de Polignac number, because 33876067921 - 2⁹ = 33876067409 is a prime.

It is a super-2 number, since 2×33876067921² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33876067931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16938033960 + 16938033961.

It is an arithmetic number, because the mean of its divisors is an integer number (16938033961).

Almost surely, 2^33876067921 is an apocalyptic number.

It is an amenable number.

33876067921 is a deficient number, since it is larger than the sum of its proper divisors (1).

33876067921 is an equidigital number, since it uses as much as digits as its factorization.

33876067921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 33876067921 in words is "thirty-three billion, eight hundred seventy-six million, sixty-seven thousand, nine hundred twenty-one".