33469061921 has 2 divisors, whose sum is σ = 33469061922. Its totient is φ = 33469061920.

The previous prime is 33469061909. The next prime is 33469061987. The reversal of 33469061921 is 12916096433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31297501921 + 2171560000 = 176911^2 + 46600^2 .

It is a cyclic number.

It is not a de Polignac number, because 33469061921 - 2²² = 33464867617 is a prime.

It is a super-2 number, since 2×33469061921² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33469066921) 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, 16734530960 + 16734530961.

It is an arithmetic number, because the mean of its divisors is an integer number (16734530961).

Almost surely, 2^33469061921 is an apocalyptic number.

It is an amenable number.

33469061921 is a deficient number, since it is larger than the sum of its proper divisors (1).

33469061921 is an equidigital number, since it uses as much as digits as its factorization.

33469061921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 33469061921 in words is "thirty-three billion, four hundred sixty-nine million, sixty-one thousand, nine hundred twenty-one".