138333717437431 has 8 divisors (see below), whose sum is σ = 138522557571840. Its totient is φ = 138144910468728.

The previous prime is 138333717437387. The next prime is 138333717437453. The reversal of 138333717437431 is 134734717333831.

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 138333717437431 - 2¹³ = 138333717429239 is a prime.

It is a super-2 number, since 2×138333717437431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138333717431431) 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, 61980 + ... + 16633438.

It is an arithmetic number, because the mean of its divisors is an integer number (17315319696480).

Almost surely, 2^{138333717437431} is an apocalyptic number.

138333717437431 is a deficient number, since it is larger than the sum of its proper divisors (188840134409).

138333717437431 is a wasteful number, since it uses less digits than its factorization.

138333717437431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16582853.

The product of its digits is 32006016, while the sum is 58.

The spelling of 138333717437431 in words is "one hundred thirty-eight trillion, three hundred thirty-three billion, seven hundred seventeen million, four hundred thirty-seven thousand, four hundred thirty-one".