327138219157 has 2 divisors, whose sum is σ = 327138219158. Its totient is φ = 327138219156.

The previous prime is 327138219119. The next prime is 327138219193. The reversal of 327138219157 is 751912831723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304975644516 + 22162574641 = 552246^2 + 148871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327138219157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 327138219157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327138219197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163569109578 + 163569109579.

It is an arithmetic number, because the mean of its divisors is an integer number (163569109579).

Almost surely, 2^327138219157 is an apocalyptic number.

It is an amenable number.

327138219157 is a deficient number, since it is larger than the sum of its proper divisors (1).

327138219157 is an equidigital number, since it uses as much as digits as its factorization.

327138219157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The spelling of 327138219157 in words is "three hundred twenty-seven billion, one hundred thirty-eight million, two hundred nineteen thousand, one hundred fifty-seven".