349015067857 has 2 divisors, whose sum is σ = 349015067858. Its totient is φ = 349015067856.

The previous prime is 349015067813. The next prime is 349015067893. The reversal of 349015067857 is 758760510943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345519420481 + 3495647376 = 587809^2 + 59124^2 .

It is an emirp because it is prime and its reverse (758760510943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349015067857 - 2³¹ = 346867584209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 349015067798 and 349015067807.

It is not a weakly prime, because it can be changed into another prime (349015065857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174507533928 + 174507533929.

It is an arithmetic number, because the mean of its divisors is an integer number (174507533929).

Almost surely, 2^349015067857 is an apocalyptic number.

It is an amenable number.

349015067857 is a deficient number, since it is larger than the sum of its proper divisors (1).

349015067857 is an equidigital number, since it uses as much as digits as its factorization.

349015067857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 349015067857 in words is "three hundred forty-nine billion, fifteen million, sixty-seven thousand, eight hundred fifty-seven".