346855477247 has 4 divisors (see below), whose sum is σ = 347370864960. Its totient is φ = 346340089536.

The previous prime is 346855477211. The next prime is 346855477279. The reversal of 346855477247 is 742774558643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742774558643 = 13 ⋅57136504511.

It is a cyclic number.

It is not a de Polignac number, because 346855477247 - 2¹⁰ = 346855476223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 346855477247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346855479247) 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, 257692847 + ... + 257694192.

It is an arithmetic number, because the mean of its divisors is an integer number (86842716240).

Almost surely, 2^346855477247 is an apocalyptic number.

346855477247 is a deficient number, since it is larger than the sum of its proper divisors (515387713).

346855477247 is an equidigital number, since it uses as much as digits as its factorization.

346855477247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515387712.

The product of its digits is 158054400, while the sum is 62.

The spelling of 346855477247 in words is "three hundred forty-six billion, eight hundred fifty-five million, four hundred seventy-seven thousand, two hundred forty-seven".