346985874817 has 4 divisors (see below), whose sum is σ = 347810069716. Its totient is φ = 346161679920.

The previous prime is 346985874793. The next prime is 346985874827. The reversal of 346985874817 is 718478589643.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3922642161 + 343063232656 = 62631^2 + 585716^2 .

It is a cyclic number.

It is not a de Polignac number, because 346985874817 - 2²³ = 346977486209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346985874827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412096818 + ... + 412097659.

It is an arithmetic number, because the mean of its divisors is an integer number (86952517429).

Almost surely, 2^346985874817 is an apocalyptic number.

It is an amenable number.

346985874817 is a deficient number, since it is larger than the sum of its proper divisors (824194899).

346985874817 is an equidigital number, since it uses as much as digits as its factorization.

346985874817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824194898.

The product of its digits is 325140480, while the sum is 70.

The spelling of 346985874817 in words is "three hundred forty-six billion, nine hundred eighty-five million, eight hundred seventy-four thousand, eight hundred seventeen".