353834378657 has 2 divisors, whose sum is σ = 353834378658. Its totient is φ = 353834378656.

The previous prime is 353834378567. The next prime is 353834378699. The reversal of 353834378657 is 756873438353.

Together with previous prime (353834378567) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320066273536 + 33768105121 = 565744^2 + 183761^2 .

It is a cyclic number.

It is not a de Polignac number, because 353834378657 - 2²⁸ = 353565943201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 353834378657.

It is not a weakly prime, because it can be changed into another prime (353834338657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176917189328 + 176917189329.

It is an arithmetic number, because the mean of its divisors is an integer number (176917189329).

Almost surely, 2^353834378657 is an apocalyptic number.

It is an amenable number.

353834378657 is a deficient number, since it is larger than the sum of its proper divisors (1).

353834378657 is an equidigital number, since it uses as much as digits as its factorization.

353834378657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 152409600, while the sum is 62.

The spelling of 353834378657 in words is "three hundred fifty-three billion, eight hundred thirty-four million, three hundred seventy-eight thousand, six hundred fifty-seven".