442778794427 has 8 divisors (see below), whose sum is σ = 457225249152. Its totient is φ = 428342544000.

The previous prime is 442778794399. The next prime is 442778794433. The reversal of 442778794427 is 724497877244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442778794427 - 2¹⁰ = 442778793403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442778794457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462828 + ... + 2636489.

It is an arithmetic number, because the mean of its divisors is an integer number (57153156144).

Almost surely, 2^442778794427 is an apocalyptic number.

442778794427 is a deficient number, since it is larger than the sum of its proper divisors (14446454725).

442778794427 is a wasteful number, since it uses less digits than its factorization.

442778794427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102149.

The product of its digits is 177020928, while the sum is 65.

The spelling of 442778794427 in words is "four hundred forty-two billion, seven hundred seventy-eight million, seven hundred ninety-four thousand, four hundred twenty-seven".