138945134374797 has 32 divisors (see below), whose sum is σ = 187246411776000. Its totient is φ = 91640072206592.

The previous prime is 138945134374751. The next prime is 138945134374799. The reversal of 138945134374797 is 797473431549831.

It is a cyclic number.

It is not a de Polignac number, because 138945134374797 - 2²⁶ = 138945067265933 is a prime.

It is a super-3 number, since 3×138945134374797³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138945134374799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1145000308 + ... + 1145121650.

It is an arithmetic number, because the mean of its divisors is an integer number (5851450368000).

Almost surely, 2^{138945134374797} is an apocalyptic number.

It is an amenable number.

138945134374797 is a deficient number, since it is larger than the sum of its proper divisors (48301277401203).

138945134374797 is a wasteful number, since it uses less digits than its factorization.

138945134374797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127697.

The product of its digits is 1920360960, while the sum is 75.

The spelling of 138945134374797 in words is "one hundred thirty-eight trillion, nine hundred forty-five billion, one hundred thirty-four million, three hundred seventy-four thousand, seven hundred ninety-seven".