353404241557 has 2 divisors, whose sum is σ = 353404241558. Its totient is φ = 353404241556.

The previous prime is 353404241551. The next prime is 353404241581. The reversal of 353404241557 is 755142404353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210122308881 + 143281932676 = 458391^2 + 378526^2 .

It is a cyclic number.

It is not a de Polignac number, because 353404241557 - 2³¹ = 351256757909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353404241551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176702120778 + 176702120779.

It is an arithmetic number, because the mean of its divisors is an integer number (176702120779).

Almost surely, 2^353404241557 is an apocalyptic number.

It is an amenable number.

353404241557 is a deficient number, since it is larger than the sum of its proper divisors (1).

353404241557 is an equidigital number, since it uses as much as digits as its factorization.

353404241557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 353404241557 in words is "three hundred fifty-three billion, four hundred four million, two hundred forty-one thousand, five hundred fifty-seven".