138063448615 has 8 divisors (see below), whose sum is σ = 165679441920. Its totient is φ = 110448556512.

The previous prime is 138063448597. The next prime is 138063448619. The reversal of 138063448615 is 516844360831.

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

It is a cyclic number.

It is not a de Polignac number, because 138063448615 - 2¹¹ = 138063446567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138063448619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31641 + ... + 526429.

It is an arithmetic number, because the mean of its divisors is an integer number (20709930240).

Almost surely, 2^138063448615 is an apocalyptic number.

138063448615 is a deficient number, since it is larger than the sum of its proper divisors (27615993305).

138063448615 is an equidigital number, since it uses as much as digits as its factorization.

138063448615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550601.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 138063448615 in words is "one hundred thirty-eight billion, sixty-three million, four hundred forty-eight thousand, six hundred fifteen".