355445035521449 has 2 divisors, whose sum is σ = 355445035521450. Its totient is φ = 355445035521448.

The previous prime is 355445035521427. The next prime is 355445035521469. The reversal of 355445035521449 is 944125530544553.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271388557515625 + 84056478005824 = 16473875^2 + 9168232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355445035521449 is a prime.

It is not a weakly prime, because it can be changed into another prime (355445035521469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177722517760724 + 177722517760725.

It is an arithmetic number, because the mean of its divisors is an integer number (177722517760725).

Almost surely, 2^{355445035521449} is an apocalyptic number.

It is an amenable number.

355445035521449 is a deficient number, since it is larger than the sum of its proper divisors (1).

355445035521449 is an equidigital number, since it uses as much as digits as its factorization.

355445035521449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600000, while the sum is 59.

The spelling of 355445035521449 in words is "three hundred fifty-five trillion, four hundred forty-five billion, thirty-five million, five hundred twenty-one thousand, four hundred forty-nine".