138138250001 has 16 divisors (see below), whose sum is σ = 140037811200. Its totient is φ = 136254222720.

The previous prime is 138138249983. The next prime is 138138250007. The reversal of 138138250001 is 100052831831.

It is a cyclic number.

It is not a de Polignac number, because 138138250001 - 2⁶ = 138138249937 is a prime.

It is a super-2 number, since 2×138138250001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138138250001.

It is not an unprimeable number, because it can be changed into a prime (138138250007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17555270 + ... + 17563136.

It is an arithmetic number, because the mean of its divisors is an integer number (8752363200).

Almost surely, 2^138138250001 is an apocalyptic number.

It is an amenable number.

138138250001 is a deficient number, since it is larger than the sum of its proper divisors (1899561199).

138138250001 is a wasteful number, since it uses less digits than its factorization.

138138250001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 138138250001 in words is "one hundred thirty-eight billion, one hundred thirty-eight million, two hundred fifty thousand, one".