33144074273621 has 2 divisors, whose sum is σ = 33144074273622. Its totient is φ = 33144074273620.

The previous prime is 33144074273539. The next prime is 33144074273641. The reversal of 33144074273621 is 12637247044133.

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., 29175273199396 + 3968801074225 = 5401414^2 + 1992185^2 .

It is a cyclic number.

It is not a de Polignac number, because 33144074273621 - 2¹⁰ = 33144074272597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33144074273641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16572037136810 + 16572037136811.

It is an arithmetic number, because the mean of its divisors is an integer number (16572037136811).

Almost surely, 2^{33144074273621} is an apocalyptic number.

It is an amenable number.

33144074273621 is a deficient number, since it is larger than the sum of its proper divisors (1).

33144074273621 is an equidigital number, since it uses as much as digits as its factorization.

33144074273621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 33144074273621 in words is "thirty-three trillion, one hundred forty-four billion, seventy-four million, two hundred seventy-three thousand, six hundred twenty-one".