442268164787 has 2 divisors, whose sum is σ = 442268164788. Its totient is φ = 442268164786.

The previous prime is 442268164781. The next prime is 442268164801. The reversal of 442268164787 is 787461862244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442268164787 - 2⁸ = 442268164531 is a prime.

It is a super-2 number, since 2×442268164787² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442268164781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221134082393 + 221134082394.

It is an arithmetic number, because the mean of its divisors is an integer number (221134082394).

Almost surely, 2^442268164787 is an apocalyptic number.

442268164787 is a deficient number, since it is larger than the sum of its proper divisors (1).

442268164787 is an equidigital number, since it uses as much as digits as its factorization.

442268164787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28901376, while the sum is 59.

The spelling of 442268164787 in words is "four hundred forty-two billion, two hundred sixty-eight million, one hundred sixty-four thousand, seven hundred eighty-seven".