442005426771 has 4 divisors (see below), whose sum is σ = 589340569032. Its totient is φ = 294670284512.

The previous prime is 442005426761. The next prime is 442005426787. The reversal of 442005426771 is 177624500244.

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 442005426771 - 2⁹ = 442005426259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442005426761) 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, 73667571126 + ... + 73667571131.

It is an arithmetic number, because the mean of its divisors is an integer number (147335142258).

Almost surely, 2^442005426771 is an apocalyptic number.

442005426771 is a deficient number, since it is larger than the sum of its proper divisors (147335142261).

442005426771 is a wasteful number, since it uses less digits than its factorization.

442005426771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147335142260.

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 442005426771 in words is "four hundred forty-two billion, five million, four hundred twenty-six thousand, seven hundred seventy-one".