355609491089 has 2 divisors, whose sum is σ = 355609491090. Its totient is φ = 355609491088.

The previous prime is 355609491073. The next prime is 355609491187. The reversal of 355609491089 is 980194906553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182546835025 + 173062656064 = 427255^2 + 416008^2 .

It is a cyclic number.

It is not a de Polignac number, because 355609491089 - 2⁴ = 355609491073 is a prime.

It is a super-2 number, since 2×355609491089² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355609491059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177804745544 + 177804745545.

It is an arithmetic number, because the mean of its divisors is an integer number (177804745545).

Almost surely, 2^355609491089 is an apocalyptic number.

It is an amenable number.

355609491089 is a deficient number, since it is larger than the sum of its proper divisors (1).

355609491089 is an equidigital number, since it uses as much as digits as its factorization.

355609491089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 355609491089 in words is "three hundred fifty-five billion, six hundred nine million, four hundred ninety-one thousand, eighty-nine".