33452073821 has 2 divisors, whose sum is σ = 33452073822. Its totient is φ = 33452073820.

The previous prime is 33452073817. The next prime is 33452073871. The reversal of 33452073821 is 12837025433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29182888900 + 4269184921 = 170830^2 + 65339^2 .

It is an emirp because it is prime and its reverse (12837025433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33452073821 - 2² = 33452073817 is a prime.

It is a super-2 number, since 2×33452073821² (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 (33452073871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16726036910 + 16726036911.

It is an arithmetic number, because the mean of its divisors is an integer number (16726036911).

Almost surely, 2^33452073821 is an apocalyptic number.

It is an amenable number.

33452073821 is a deficient number, since it is larger than the sum of its proper divisors (1).

33452073821 is an equidigital number, since it uses as much as digits as its factorization.

33452073821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 33452073821 in words is "thirty-three billion, four hundred fifty-two million, seventy-three thousand, eight hundred twenty-one".