138259089591 has 64 divisors (see below), whose sum is σ = 238122270720. Its totient is φ = 69451845120.

The previous prime is 138259089581. The next prime is 138259089593. The reversal of 138259089591 is 195980952831.

It is not a de Polignac number, because 138259089591 - 2²⁵ = 138225535159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138259089593) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338050 + ... + 625136.

It is an arithmetic number, because the mean of its divisors is an integer number (3720660480).

Almost surely, 2^138259089591 is an apocalyptic number.

138259089591 is a deficient number, since it is larger than the sum of its proper divisors (99863181129).

138259089591 is a wasteful number, since it uses less digits than its factorization.

138259089591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287204.

The product of its (nonzero) digits is 6998400, while the sum is 60.

The spelling of 138259089591 in words is "one hundred thirty-eight billion, two hundred fifty-nine million, eighty-nine thousand, five hundred ninety-one".