442253346663 has 4 divisors (see below), whose sum is σ = 589671128888. Its totient is φ = 294835564440.

The previous prime is 442253346617. The next prime is 442253346781. The reversal of 442253346663 is 366643352244.

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

It is not a de Polignac number, because 442253346663 - 2⁶ = 442253346599 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 (442253336663) 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, 73708891108 + ... + 73708891113.

It is an arithmetic number, because the mean of its divisors is an integer number (147417782222).

Almost surely, 2^442253346663 is an apocalyptic number.

442253346663 is a deficient number, since it is larger than the sum of its proper divisors (147417782225).

442253346663 is a wasteful number, since it uses less digits than its factorization.

442253346663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147417782224.

The product of its digits is 7464960, while the sum is 48.

The spelling of 442253346663 in words is "four hundred forty-two billion, two hundred fifty-three million, three hundred forty-six thousand, six hundred sixty-three".