427344554617 has 4 divisors (see below), whose sum is σ = 427368064896. Its totient is φ = 427321044340.

The previous prime is 427344554579. The next prime is 427344554627. The reversal of 427344554617 is 716455443724.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427344554617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427344554627) 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, 11727853 + ... + 11764234.

It is an arithmetic number, because the mean of its divisors is an integer number (106842016224).

Almost surely, 2^427344554617 is an apocalyptic number.

It is an amenable number.

427344554617 is a deficient number, since it is larger than the sum of its proper divisors (23510279).

427344554617 is a wasteful number, since it uses less digits than its factorization.

427344554617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23510278.

The product of its digits is 11289600, while the sum is 52.

The spelling of 427344554617 in words is "four hundred twenty-seven billion, three hundred forty-four million, five hundred fifty-four thousand, six hundred seventeen".