427002165347647 has 4 divisors (see below), whose sum is σ = 427014725377096. Its totient is φ = 426989605318200.

The previous prime is 427002165347633. The next prime is 427002165347699. The reversal of 427002165347647 is 746743561200724.

It is a happy number.

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 427002165347647 - 2¹¹ = 427002165345599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427002165347591 and 427002165347600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427002165344647) 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, 6279963729 + ... + 6280031722.

It is an arithmetic number, because the mean of its divisors is an integer number (106753681344274).

Almost surely, 2^{427002165347647} is an apocalyptic number.

427002165347647 is a deficient number, since it is larger than the sum of its proper divisors (12560029449).

427002165347647 is a wasteful number, since it uses less digits than its factorization.

427002165347647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560029448.

The product of its (nonzero) digits is 47416320, while the sum is 58.

The spelling of 427002165347647 in words is "four hundred twenty-seven trillion, two billion, one hundred sixty-five million, three hundred forty-seven thousand, six hundred forty-seven".