138852647045 has 32 divisors (see below), whose sum is σ = 204231041280. Its totient is φ = 88500072960.

The previous prime is 138852646957. The next prime is 138852647071. The reversal of 138852647045 is 540746258831.

It is not a de Polignac number, because 138852647045 - 2¹⁰ = 138852646021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1934576 + ... + 2005065.

It is an arithmetic number, because the mean of its divisors is an integer number (6382220040).

Almost surely, 2^138852647045 is an apocalyptic number.

It is an amenable number.

138852647045 is a deficient number, since it is larger than the sum of its proper divisors (65378394235).

138852647045 is a wasteful number, since it uses less digits than its factorization.

138852647045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939725.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 138852647045 in words is "one hundred thirty-eight billion, eight hundred fifty-two million, six hundred forty-seven thousand, forty-five".