33881720485 has 8 divisors (see below), whose sum is σ = 41425198200. Its totient is φ = 26593953984.

The previous prime is 33881720473. The next prime is 33881720503. The reversal of 33881720485 is 58402718833.

It can be written as a sum of positive squares in 4 ways, for example, as 2933522244 + 30948198241 = 54162^2 + 175921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33881720485 is a prime.

It is a super-2 number, since 2×33881720485² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63927510 + ... + 63928039.

It is an arithmetic number, because the mean of its divisors is an integer number (5178149775).

Almost surely, 2^33881720485 is an apocalyptic number.

It is an amenable number.

33881720485 is a deficient number, since it is larger than the sum of its proper divisors (7543477715).

33881720485 is a wasteful number, since it uses less digits than its factorization.

33881720485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127855607.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 33881720485 in words is "thirty-three billion, eight hundred eighty-one million, seven hundred twenty thousand, four hundred eighty-five".