427478784347 has 16 divisors (see below), whose sum is σ = 429912267840. Its totient is φ = 425054822400.

The previous prime is 427478784319. The next prime is 427478784349. The reversal of 427478784347 is 743487874724.

It is a cyclic number.

It is not a de Polignac number, because 427478784347 - 2¹⁶ = 427478718811 is a prime.

It is a super-2 number, since 2×427478784347² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427478784349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263712197 + ... + 263713817.

It is an arithmetic number, because the mean of its divisors is an integer number (26869516740).

Almost surely, 2^427478784347 is an apocalyptic number.

427478784347 is a deficient number, since it is larger than the sum of its proper divisors (2433483493).

427478784347 is a wasteful number, since it uses less digits than its factorization.

427478784347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

The product of its digits is 236027904, while the sum is 65.

The spelling of 427478784347 in words is "four hundred twenty-seven billion, four hundred seventy-eight million, seven hundred eighty-four thousand, three hundred forty-seven".