354349746917 has 2 divisors, whose sum is σ = 354349746918. Its totient is φ = 354349746916.

The previous prime is 354349746913. The next prime is 354349746923. The reversal of 354349746917 is 719647943453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353090277796 + 1259469121 = 594214^2 + 35489^2 .

It is a cyclic number.

It is not a de Polignac number, because 354349746917 - 2² = 354349746913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354349746917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354349746913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177174873458 + 177174873459.

It is an arithmetic number, because the mean of its divisors is an integer number (177174873459).

Almost surely, 2^354349746917 is an apocalyptic number.

It is an amenable number.

354349746917 is a deficient number, since it is larger than the sum of its proper divisors (1).

354349746917 is an equidigital number, since it uses as much as digits as its factorization.

354349746917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68584320, while the sum is 62.

The spelling of 354349746917 in words is "three hundred fifty-four billion, three hundred forty-nine million, seven hundred forty-six thousand, nine hundred seventeen".