349346912251 has 4 divisors (see below), whose sum is σ = 349633969272. Its totient is φ = 349059855232.

The previous prime is 349346912249. The next prime is 349346912263. The reversal of 349346912251 is 152219643943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152219643943 = 165667 ⋅918829.

It is a cyclic number.

It is not a de Polignac number, because 349346912251 - 2¹ = 349346912249 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349346912195 and 349346912204.

It is not an unprimeable number, because it can be changed into a prime (349346912351) 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, 143526685 + ... + 143529118.

It is an arithmetic number, because the mean of its divisors is an integer number (87408492318).

Almost surely, 2^349346912251 is an apocalyptic number.

349346912251 is a deficient number, since it is larger than the sum of its proper divisors (287057021).

349346912251 is a wasteful number, since it uses less digits than its factorization.

349346912251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287057020.

The product of its digits is 1399680, while the sum is 49.

The spelling of 349346912251 in words is "three hundred forty-nine billion, three hundred forty-six million, nine hundred twelve thousand, two hundred fifty-one".