427418673647617 has 16 divisors (see below), whose sum is σ = 434725582856400. Its totient is φ = 420174386944000.

The previous prime is 427418673647593. The next prime is 427418673647627. The reversal of 427418673647617 is 716746376814724.

It can be written as a sum of positive squares in 8 ways, for example, as 22549226896 + 427396124420721 = 150164^2 + 20673561^2 .

It is a cyclic number.

It is not a de Polignac number, because 427418673647617 - 2³¹ = 427416526163969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427418673647617.

It is not an unprimeable number, because it can be changed into a prime (427418673647627) 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, 30916953 + ... + 42552265.

It is an arithmetic number, because the mean of its divisors is an integer number (27170348928525).

Almost surely, 2^{427418673647617} is an apocalyptic number.

It is an amenable number.

427418673647617 is a deficient number, since it is larger than the sum of its proper divisors (7306909208783).

427418673647617 is a wasteful number, since it uses less digits than its factorization.

427418673647617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638004.

The product of its digits is 1593188352, while the sum is 73.

The spelling of 427418673647617 in words is "four hundred twenty-seven trillion, four hundred eighteen billion, six hundred seventy-three million, six hundred forty-seven thousand, six hundred seventeen".