33481798261 has 2 divisors, whose sum is σ = 33481798262. Its totient is φ = 33481798260.

The previous prime is 33481798219. The next prime is 33481798319. The reversal of 33481798261 is 16289718433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20053392100 + 13428406161 = 141610^2 + 115881^2 .

It is an emirp because it is prime and its reverse (16289718433) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33481798261 is a prime.

It is a super-4 number, since 4×33481798261⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 33481798199 and 33481798208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33481790261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16740899130 + 16740899131.

It is an arithmetic number, because the mean of its divisors is an integer number (16740899131).

Almost surely, 2^33481798261 is an apocalyptic number.

It is an amenable number.

33481798261 is a deficient number, since it is larger than the sum of its proper divisors (1).

33481798261 is an equidigital number, since it uses as much as digits as its factorization.

33481798261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The spelling of 33481798261 in words is "thirty-three billion, four hundred eighty-one million, seven hundred ninety-eight thousand, two hundred sixty-one".