138645234277 has 16 divisors (see below), whose sum is σ = 152463643200. Its totient is φ = 125029964800.

The previous prime is 138645234253. The next prime is 138645234281. The reversal of 138645234277 is 772432546831.

It is a cyclic number.

It is not a de Polignac number, because 138645234277 - 2¹⁵ = 138645201509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138645234577) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3949599 + ... + 3984547.

It is an arithmetic number, because the mean of its divisors is an integer number (9528977700).

Almost surely, 2^138645234277 is an apocalyptic number.

It is an amenable number.

138645234277 is a deficient number, since it is larger than the sum of its proper divisors (13818408923).

138645234277 is a wasteful number, since it uses less digits than its factorization.

138645234277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37844.

The product of its digits is 6773760, while the sum is 52.

The spelling of 138645234277 in words is "one hundred thirty-eight billion, six hundred forty-five million, two hundred thirty-four thousand, two hundred seventy-seven".