3472721443427 has 4 divisors (see below), whose sum is σ = 3472741843800. Its totient is φ = 3472701043056.

The previous prime is 3472721443397. The next prime is 3472721443463. The reversal of 3472721443427 is 7243441272743.

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 3472721443427 - 2⁶ = 3472721443363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3472721443487) 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, 9942677 + ... + 10286022.

It is an arithmetic number, because the mean of its divisors is an integer number (868185460950).

Almost surely, 2^{3472721443427} is an apocalyptic number.

3472721443427 is a deficient number, since it is larger than the sum of its proper divisors (20400373).

3472721443427 is a wasteful number, since it uses less digits than its factorization.

3472721443427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400372.

The product of its digits is 6322176, while the sum is 50.

The spelling of 3472721443427 in words is "three trillion, four hundred seventy-two billion, seven hundred twenty-one million, four hundred forty-three thousand, four hundred twenty-seven".