442440424221277 has 2 divisors, whose sum is σ = 442440424221278. Its totient is φ = 442440424221276.

The previous prime is 442440424221251. The next prime is 442440424221287. The reversal of 442440424221277 is 772122424044244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383297849064036 + 59142575157241 = 19577994^2 + 7690421^2 .

It is a cyclic number.

It is not a de Polignac number, because 442440424221277 - 2⁷ = 442440424221149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442440424221277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442440424221247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221220212110638 + 221220212110639.

It is an arithmetic number, because the mean of its divisors is an integer number (221220212110639).

Almost surely, 2^{442440424221277} is an apocalyptic number.

It is an amenable number.

442440424221277 is a deficient number, since it is larger than the sum of its proper divisors (1).

442440424221277 is an equidigital number, since it uses as much as digits as its factorization.

442440424221277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6422528, while the sum is 49.

The spelling of 442440424221277 in words is "four hundred forty-two trillion, four hundred forty billion, four hundred twenty-four million, two hundred twenty-one thousand, two hundred seventy-seven".