2191348347 has 8 divisors (see below), whose sum is σ = 3000765456. Its totient is φ = 1421415072.

The previous prime is 2191348343. The next prime is 2191348417. The reversal of 2191348347 is 7438431912.

2191348347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2191348347 - 2² = 2191348343 is a prime.

It is a super-3 number, since 3×2191348347³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2191348299 and 2191348308.

It is not an unprimeable number, because it can be changed into a prime (2191348343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9870828 + ... + 9871049.

It is an arithmetic number, because the mean of its divisors is an integer number (375095682).

Almost surely, 2^2191348347 is an apocalyptic number.

2191348347 is a deficient number, since it is larger than the sum of its proper divisors (809417109).

2191348347 is a wasteful number, since it uses less digits than its factorization.

2191348347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19741917.

The product of its digits is 145152, while the sum is 42.

The square root of 2191348347 is about 46811.8398164396. The cubic root of 2191348347 is about 1298.8843183197.

The spelling of 2191348347 in words is "two billion, one hundred ninety-one million, three hundred forty-eight thousand, three hundred forty-seven".