138250810775 has 24 divisors (see below), whose sum is σ = 213732165504. Its totient is φ = 86182322400.

The previous prime is 138250810741. The next prime is 138250810783. The reversal of 138250810775 is 577018052831.

It is a happy number.

It is not a de Polignac number, because 138250810775 - 2¹⁴ = 138250794391 is a prime.

It is a super-3 number, since 3×138250810775³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35907377 + ... + 35911226.

It is an arithmetic number, because the mean of its divisors is an integer number (8905506896).

Almost surely, 2^138250810775 is an apocalyptic number.

138250810775 is a deficient number, since it is larger than the sum of its proper divisors (75481354729).

138250810775 is a wasteful number, since it uses less digits than its factorization.

138250810775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71818631 (or 71818626 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 138250810775 in words is "one hundred thirty-eight billion, two hundred fifty million, eight hundred ten thousand, seven hundred seventy-five".