3427400047243 has 4 divisors (see below), whose sum is σ = 3427425311760. Its totient is φ = 3427374782728.

The previous prime is 3427400047237. The next prime is 3427400047277.

It is a happy number.

3427400047243 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 3427400047243 - 2³³ = 3418810112651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3427400047196 and 3427400047205.

It is not an unprimeable number, because it can be changed into a prime (3427400017243) 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, 12427663 + ... + 12700456.

It is an arithmetic number, because the mean of its divisors is an integer number (856856327940).

Almost surely, 2^{3427400047243} is an apocalyptic number.

3427400047243 is a deficient number, since it is larger than the sum of its proper divisors (25264517).

3427400047243 is a wasteful number, since it uses less digits than its factorization.

3427400047243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25264516.

The product of its (nonzero) digits is 451584, while the sum is 40.

The spelling of 3427400047243 in words is "three trillion, four hundred twenty-seven billion, four hundred million, forty-seven thousand, two hundred forty-three".