349456189799 has 2 divisors, whose sum is σ = 349456189800. Its totient is φ = 349456189798.

The previous prime is 349456189777. The next prime is 349456189867. The reversal of 349456189799 is 997981654943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349456189799 - 2⁸ = 349456189543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349456189729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174728094899 + 174728094900.

It is an arithmetic number, because the mean of its divisors is an integer number (174728094900).

Almost surely, 2^349456189799 is an apocalyptic number.

349456189799 is a deficient number, since it is larger than the sum of its proper divisors (1).

349456189799 is an equidigital number, since it uses as much as digits as its factorization.

349456189799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529079040, while the sum is 74.

The spelling of 349456189799 in words is "three hundred forty-nine billion, four hundred fifty-six million, one hundred eighty-nine thousand, seven hundred ninety-nine".