138023045292071 has 16 divisors (see below), whose sum is σ = 146290461942240. Its totient is φ = 129990628830720.

The previous prime is 138023045291981. The next prime is 138023045292079. The reversal of 138023045292071 is 170292540320831.

It is a cyclic number.

It is not a de Polignac number, because 138023045292071 - 2¹⁸ = 138023045029927 is a prime.

It is a super-2 number, since 2×138023045292071² (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 (138023045292079) 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, 3295781 + ... + 16938366.

It is an arithmetic number, because the mean of its divisors is an integer number (9143153871390).

Almost surely, 2^{138023045292071} is an apocalyptic number.

138023045292071 is a deficient number, since it is larger than the sum of its proper divisors (8267416650169).

138023045292071 is a wasteful number, since it uses less digits than its factorization.

138023045292071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20239954.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 138023045292071 in words is "one hundred thirty-eight trillion, twenty-three billion, forty-five million, two hundred ninety-two thousand, seventy-one".