33690503905 has 8 divisors (see below), whose sum is σ = 41191408872. Its totient is φ = 26443867008.

The previous prime is 33690503813. The next prime is 33690503927. The reversal of 33690503905 is 50930509633.

It can be written as a sum of positive squares in 4 ways, for example, as 937829376 + 32752674529 = 30624^2 + 180977^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33690503905 - 2²¹ = 33688406753 is a prime.

It is a super-2 number, since 2×33690503905² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63566724 + ... + 63567253.

It is an arithmetic number, because the mean of its divisors is an integer number (5148926109).

Almost surely, 2^33690503905 is an apocalyptic number.

It is an amenable number.

33690503905 is a deficient number, since it is larger than the sum of its proper divisors (7500904967).

33690503905 is a wasteful number, since it uses less digits than its factorization.

33690503905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127134035.

The product of its (nonzero) digits is 328050, while the sum is 43.

The spelling of 33690503905 in words is "thirty-three billion, six hundred ninety million, five hundred three thousand, nine hundred five".