33519140021 has 2 divisors, whose sum is σ = 33519140022. Its totient is φ = 33519140020.

The previous prime is 33519139991. The next prime is 33519140027. The reversal of 33519140021 is 12004191533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32207686225 + 1311453796 = 179465^2 + 36214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33519140021 is a prime.

It is a super-2 number, since 2×33519140021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33519140027) 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, 16759570010 + 16759570011.

It is an arithmetic number, because the mean of its divisors is an integer number (16759570011).

Almost surely, 2^33519140021 is an apocalyptic number.

It is an amenable number.

33519140021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33519140021 is an equidigital number, since it uses as much as digits as its factorization.

33519140021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 33519140021 in words is "thirty-three billion, five hundred nineteen million, one hundred forty thousand, twenty-one".