138775013774 has 8 divisors (see below), whose sum is σ = 208304035968. Its totient is φ = 69340335120.

The previous prime is 138775013761. The next prime is 138775013777. The reversal of 138775013774 is 477310577831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138775013777) 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 3 ways as a sum of consecutive naturals, for example, 23582207 + ... + 23588090.

It is an arithmetic number, because the mean of its divisors is an integer number (26038004496).

Almost surely, 2^138775013774 is an apocalyptic number.

138775013774 is a deficient number, since it is larger than the sum of its proper divisors (69529022194).

138775013774 is a wasteful number, since it uses less digits than its factorization.

138775013774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47171770.

The product of its (nonzero) digits is 3457440, while the sum is 53.

The spelling of 138775013774 in words is "one hundred thirty-eight billion, seven hundred seventy-five million, thirteen thousand, seven hundred seventy-four".