138450006086439 has 8 divisors (see below), whose sum is σ = 186009168483072. Its totient is φ = 91595423873720.

The previous prime is 138450006086423. The next prime is 138450006086449. The reversal of 138450006086439 is 934680600054831.

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 138450006086439 - 2⁴ = 138450006086423 is a prime.

It is a super-2 number, since 2×138450006086439² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138450006086449) 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, 176145045519 + ... + 176145046304.

It is an arithmetic number, because the mean of its divisors is an integer number (23251146060384).

Almost surely, 2^{138450006086439} is an apocalyptic number.

138450006086439 is a deficient number, since it is larger than the sum of its proper divisors (47559162396633).

138450006086439 is a wasteful number, since it uses less digits than its factorization.

138450006086439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352290091957.

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 138450006086439 in words is "one hundred thirty-eight trillion, four hundred fifty billion, six million, eighty-six thousand, four hundred thirty-nine".