442807464451 has 8 divisors (see below), whose sum is σ = 484942312944. Its totient is φ = 400985886720.

The previous prime is 442807464427. The next prime is 442807464481. The reversal of 442807464451 is 154464708244.

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 442807464451 - 2⁹ = 442807463939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442807464395 and 442807464404.

It is not an unprimeable number, because it can be changed into a prime (442807464481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78314730 + ... + 78320383.

It is an arithmetic number, because the mean of its divisors is an integer number (60617789118).

Almost surely, 2^442807464451 is an apocalyptic number.

442807464451 is a deficient number, since it is larger than the sum of its proper divisors (42134848493).

442807464451 is a wasteful number, since it uses less digits than its factorization.

442807464451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156635381.

The product of its (nonzero) digits is 3440640, while the sum is 49.

The spelling of 442807464451 in words is "four hundred forty-two billion, eight hundred seven million, four hundred sixty-four thousand, four hundred fifty-one".