138748810534 has 8 divisors (see below), whose sum is σ = 209273068368. Its totient is φ = 68991121080.

The previous prime is 138748810469. The next prime is 138748810553. The reversal of 138748810534 is 435018847831.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191641642 + ... + 191642365.

It is an arithmetic number, because the mean of its divisors is an integer number (26159133546).

Almost surely, 2^138748810534 is an apocalyptic number.

138748810534 is a deficient number, since it is larger than the sum of its proper divisors (70524257834).

138748810534 is a wasteful number, since it uses less digits than its factorization.

138748810534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383284190.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 138748810534 in words is "one hundred thirty-eight billion, seven hundred forty-eight million, eight hundred ten thousand, five hundred thirty-four".