138285653869 has 8 divisors (see below), whose sum is σ = 151646906880. Its totient is φ = 125056039200.

The previous prime is 138285653839. The next prime is 138285653873. The reversal of 138285653869 is 968356582831.

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 138285653869 - 2⁵ = 138285653837 is a prime.

It is a super-2 number, since 2×138285653869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138285653869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138285653839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32907384 + ... + 32911585.

It is an arithmetic number, because the mean of its divisors is an integer number (18955863360).

Almost surely, 2^138285653869 is an apocalyptic number.

It is an amenable number.

138285653869 is a deficient number, since it is larger than the sum of its proper divisors (13361253011).

138285653869 is a wasteful number, since it uses less digits than its factorization.

138285653869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65819171.

The product of its digits is 74649600, while the sum is 64.

The spelling of 138285653869 in words is "one hundred thirty-eight billion, two hundred eighty-five million, six hundred fifty-three thousand, eight hundred sixty-nine".