138595353577 has 4 divisors (see below), whose sum is σ = 138795926416. Its totient is φ = 138394780740.

The previous prime is 138595353539. The next prime is 138595353581. The reversal of 138595353577 is 775353595831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 775353595831 = 350003 ⋅2215277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138595353577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138595353527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100285383 + ... + 100286764.

It is an arithmetic number, because the mean of its divisors is an integer number (34698981604).

Almost surely, 2^138595353577 is an apocalyptic number.

It is an amenable number.

138595353577 is a deficient number, since it is larger than the sum of its proper divisors (200572839).

138595353577 is an equidigital number, since it uses as much as digits as its factorization.

138595353577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200572838.

The product of its digits is 59535000, while the sum is 61.

The spelling of 138595353577 in words is "one hundred thirty-eight billion, five hundred ninety-five million, three hundred fifty-three thousand, five hundred seventy-seven".