138259089593 has 2 divisors, whose sum is σ = 138259089594. Its totient is φ = 138259089592.

The previous prime is 138259089581. The next prime is 138259089599. The reversal of 138259089593 is 395980952831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120112844329 + 18146245264 = 346573^2 + 134708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138259089593 is a prime.

It is not a weakly prime, because it can be changed into another prime (138259089599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69129544796 + 69129544797.

It is an arithmetic number, because the mean of its divisors is an integer number (69129544797).

Almost surely, 2^138259089593 is an apocalyptic number.

It is an amenable number.

138259089593 is a deficient number, since it is larger than the sum of its proper divisors (1).

138259089593 is an equidigital number, since it uses as much as digits as its factorization.

138259089593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 138259089593 in words is "one hundred thirty-eight billion, two hundred fifty-nine million, eighty-nine thousand, five hundred ninety-three".