427228743939 has 16 divisors (see below), whose sum is σ = 579582245760. Its totient is φ = 279868406400.

The previous prime is 427228743923. The next prime is 427228743959. The reversal of 427228743939 is 939347822724.

It is a happy number.

It is not a de Polignac number, because 427228743939 - 2⁴ = 427228743923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427228743959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2569669 + ... + 2730870.

It is an arithmetic number, because the mean of its divisors is an integer number (36223890360).

Almost surely, 2^427228743939 is an apocalyptic number.

427228743939 is a deficient number, since it is larger than the sum of its proper divisors (152353501821).

427228743939 is a wasteful number, since it uses less digits than its factorization.

427228743939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301010.

The product of its digits is 36578304, while the sum is 60.

The spelling of 427228743939 in words is "four hundred twenty-seven billion, two hundred twenty-eight million, seven hundred forty-three thousand, nine hundred thirty-nine".