189379380353 has 2 divisors, whose sum is σ = 189379380354. Its totient is φ = 189379380352.

The previous prime is 189379380343. The next prime is 189379380373. The reversal of 189379380353 is 353083973981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147449856064 + 41929524289 = 383992^2 + 204767^2 .

It is a cyclic number.

It is not a de Polignac number, because 189379380353 - 2²⁰ = 189378331777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189379380292 and 189379380301.

It is not a weakly prime, because it can be changed into another prime (189379380343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94689690176 + 94689690177.

It is an arithmetic number, because the mean of its divisors is an integer number (94689690177).

Almost surely, 2^189379380353 is an apocalyptic number.

It is an amenable number.

189379380353 is a deficient number, since it is larger than the sum of its proper divisors (1).

189379380353 is an equidigital number, since it uses as much as digits as its factorization.

189379380353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 189379380353 in words is "one hundred eighty-nine billion, three hundred seventy-nine million, three hundred eighty thousand, three hundred fifty-three".