138234102277 has 48 divisors (see below), whose sum is σ = 153737740800. Its totient is φ = 124179793920.

The previous prime is 138234102263. The next prime is 138234102283. The reversal of 138234102277 is 772201432831.

It is not a de Polignac number, because 138234102277 - 2³⁵ = 103874363909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138234172277) 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 47 ways as a sum of consecutive naturals, for example, 85912249 + ... + 85913857.

It is an arithmetic number, because the mean of its divisors is an integer number (3202869600).

Almost surely, 2^138234102277 is an apocalyptic number.

138234102277 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

138234102277 is a deficient number, since it is larger than the sum of its proper divisors (15503638523).

138234102277 is a wasteful number, since it uses less digits than its factorization.

138234102277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 138234102277 in words is "one hundred thirty-eight billion, two hundred thirty-four million, one hundred two thousand, two hundred seventy-seven".