138465682246 has 4 divisors (see below), whose sum is σ = 207698523372. Its totient is φ = 69232841122.

The previous prime is 138465682001. The next prime is 138465682247. The reversal of 138465682246 is 642286564831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 642286564831 = 296801 ⋅2164031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138465682247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34616420560 + ... + 34616420563.

It is an arithmetic number, because the mean of its divisors is an integer number (51924630843).

Almost surely, 2^138465682246 is an apocalyptic number.

138465682246 is a deficient number, since it is larger than the sum of its proper divisors (69232841126).

138465682246 is an equidigital number, since it uses as much as digits as its factorization.

138465682246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69232841125.

The product of its digits is 13271040, while the sum is 55.

The spelling of 138465682246 in words is "one hundred thirty-eight billion, four hundred sixty-five million, six hundred eighty-two thousand, two hundred forty-six".