138943031574351 has 16 divisors (see below), whose sum is σ = 187868768698368. Its totient is φ = 91323020728800.

The previous prime is 138943031574251. The next prime is 138943031574359. The reversal of 138943031574351 is 153475130349831.

It is not a de Polignac number, because 138943031574351 - 2¹⁹ = 138943031050063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138943031574291 and 138943031574300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138943031574359) 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, 15314421 + ... + 22636641.

It is an arithmetic number, because the mean of its divisors is an integer number (11741798043648).

Almost surely, 2^{138943031574351} is an apocalyptic number.

138943031574351 is a deficient number, since it is larger than the sum of its proper divisors (48925737124017).

138943031574351 is an equidigital number, since it uses as much as digits as its factorization.

138943031574351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411382.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 138943031574351 in words is "one hundred thirty-eight trillion, nine hundred forty-three billion, thirty-one million, five hundred seventy-four thousand, three hundred fifty-one".