33648484621 has 2 divisors, whose sum is σ = 33648484622. Its totient is φ = 33648484620.

The previous prime is 33648484609. The next prime is 33648484643. The reversal of 33648484621 is 12648484633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30935533225 + 2712951396 = 175885^2 + 52086^2 .

It is an emirp because it is prime and its reverse (12648484633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33648484621 - 2⁵ = 33648484589 is a prime.

It is a super-2 number, since 2×33648484621² (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 (33648484691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16824242310 + 16824242311.

It is an arithmetic number, because the mean of its divisors is an integer number (16824242311).

Almost surely, 2^33648484621 is an apocalyptic number.

It is an amenable number.

33648484621 is a deficient number, since it is larger than the sum of its proper divisors (1).

33648484621 is an equidigital number, since it uses as much as digits as its factorization.

33648484621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 49.

The spelling of 33648484621 in words is "thirty-three billion, six hundred forty-eight million, four hundred eighty-four thousand, six hundred twenty-one".