442638053542789 has 8 divisors (see below), whose sum is σ = 477002612524032. Its totient is φ = 408318562838640.

The previous prime is 442638053542753. The next prime is 442638053542819. The reversal of 442638053542789 is 987245350836244.

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 442638053542789 - 2³⁷ = 442500614589317 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 (442638053552789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11267048869 + ... + 11267088154.

It is an arithmetic number, because the mean of its divisors is an integer number (59625326565504).

Almost surely, 2^{442638053542789} is an apocalyptic number.

It is an amenable number.

442638053542789 is a deficient number, since it is larger than the sum of its proper divisors (34364558981243).

442638053542789 is a wasteful number, since it uses less digits than its factorization.

442638053542789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22534138547.

The product of its (nonzero) digits is 1393459200, while the sum is 70.

The spelling of 442638053542789 in words is "four hundred forty-two trillion, six hundred thirty-eight billion, fifty-three million, five hundred forty-two thousand, seven hundred eighty-nine".