138033517609 has 8 divisors (see below), whose sum is σ = 149056530560. Its totient is φ = 127068368976.

The previous prime is 138033517477. The next prime is 138033517613. The reversal of 138033517609 is 906715330831.

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 138033517609 - 2¹¹ = 138033515561 is a prime.

It is a super-2 number, since 2×138033517609² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138033517669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14461119 + ... + 14470660.

It is an arithmetic number, because the mean of its divisors is an integer number (18632066320).

Almost surely, 2^138033517609 is an apocalyptic number.

It is an amenable number.

138033517609 is a deficient number, since it is larger than the sum of its proper divisors (11023012951).

138033517609 is a wasteful number, since it uses less digits than its factorization.

138033517609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28932159.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 138033517609 in words is "one hundred thirty-eight billion, thirty-three million, five hundred seventeen thousand, six hundred nine".