442520154652243 has 4 divisors (see below), whose sum is σ = 450869591532528. Its totient is φ = 434170717771960.

The previous prime is 442520154652159. The next prime is 442520154652319. The reversal of 442520154652243 is 342256451025244.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 442520154652243 - 2⁴¹ = 440321131396691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442520154052243) 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, 4174718440063 + ... + 4174718440168.

It is an arithmetic number, because the mean of its divisors is an integer number (112717397883132).

Almost surely, 2^{442520154652243} is an apocalyptic number.

442520154652243 is a deficient number, since it is larger than the sum of its proper divisors (8349436880285).

442520154652243 is an equidigital number, since it uses as much as digits as its factorization.

442520154652243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349436880284.

The product of its (nonzero) digits is 9216000, while the sum is 49.

The spelling of 442520154652243 in words is "four hundred forty-two trillion, five hundred twenty billion, one hundred fifty-four million, six hundred fifty-two thousand, two hundred forty-three".