138283548577766 has 8 divisors (see below), whose sum is σ = 207472029775464. Its totient is φ = 69126205319280.

The previous prime is 138283548577747. The next prime is 138283548577789. The reversal of 138283548577766 is 667775845382831.

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, 7784473700 + ... + 7784491463.

It is an arithmetic number, because the mean of its divisors is an integer number (25934003721933).

Almost surely, 2^{138283548577766} is an apocalyptic number.

138283548577766 is a deficient number, since it is larger than the sum of its proper divisors (69188481197698).

138283548577766 is a wasteful number, since it uses less digits than its factorization.

138283548577766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15568969606.

The product of its digits is 11379916800, while the sum is 80.

The spelling of 138283548577766 in words is "one hundred thirty-eight trillion, two hundred eighty-three billion, five hundred forty-eight million, five hundred seventy-seven thousand, seven hundred sixty-six".