355228329493 has 2 divisors, whose sum is σ = 355228329494. Its totient is φ = 355228329492.

The previous prime is 355228329451. The next prime is 355228329541. The reversal of 355228329493 is 394923822553.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255225019204 + 100003310289 = 505198^2 + 316233^2 .

It is a cyclic number.

It is not a de Polignac number, because 355228329493 - 2²⁹ = 354691458581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355228329413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177614164746 + 177614164747.

It is an arithmetic number, because the mean of its divisors is an integer number (177614164747).

Almost surely, 2^355228329493 is an apocalyptic number.

It is an amenable number.

355228329493 is a deficient number, since it is larger than the sum of its proper divisors (1).

355228329493 is an equidigital number, since it uses as much as digits as its factorization.

355228329493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13996800, while the sum is 55.

The spelling of 355228329493 in words is "three hundred fifty-five billion, two hundred twenty-eight million, three hundred twenty-nine thousand, four hundred ninety-three".