427764543607 has 4 divisors (see below), whose sum is σ = 429980940400. Its totient is φ = 425548146816.

The previous prime is 427764543601. The next prime is 427764543697. The reversal of 427764543607 is 706345467724.

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 427764543607 - 2¹¹ = 427764541559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427764543601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108198107 + ... + 1108198492.

It is an arithmetic number, because the mean of its divisors is an integer number (107495235100).

Almost surely, 2^427764543607 is an apocalyptic number.

427764543607 is a deficient number, since it is larger than the sum of its proper divisors (2216396793).

427764543607 is a wasteful number, since it uses less digits than its factorization.

427764543607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216396792.

The product of its (nonzero) digits is 23708160, while the sum is 55.

The spelling of 427764543607 in words is "four hundred twenty-seven billion, seven hundred sixty-four million, five hundred forty-three thousand, six hundred seven".