138718501375 has 16 divisors (see below), whose sum is σ = 173863733472. Its totient is φ = 110498491200.

The previous prime is 138718501343. The next prime is 138718501387. The reversal of 138718501375 is 573105817831.

It is not a de Polignac number, because 138718501375 - 2⁵ = 138718501343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2352309 + ... + 2410558.

It is an arithmetic number, because the mean of its divisors is an integer number (10866483342).

Almost surely, 2^138718501375 is an apocalyptic number.

138718501375 is a deficient number, since it is larger than the sum of its proper divisors (35145232097).

138718501375 is an equidigital number, since it uses as much as digits as its factorization.

138718501375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763115 (or 4763105 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 138718501375 in words is "one hundred thirty-eight billion, seven hundred eighteen million, five hundred one thousand, three hundred seventy-five".