442287386155253 has 2 divisors, whose sum is σ = 442287386155254. Its totient is φ = 442287386155252.

The previous prime is 442287386155217. The next prime is 442287386155291. The reversal of 442287386155253 is 352551683782244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429025137778084 + 13262248377169 = 20712922^2 + 3641737^2 .

It is a cyclic number.

It is not a de Polignac number, because 442287386155253 - 2⁶ = 442287386155189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442287386155253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442287386152253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221143693077626 + 221143693077627.

It is an arithmetic number, because the mean of its divisors is an integer number (221143693077627).

Almost surely, 2^{442287386155253} is an apocalyptic number.

It is an amenable number.

442287386155253 is a deficient number, since it is larger than the sum of its proper divisors (1).

442287386155253 is an equidigital number, since it uses as much as digits as its factorization.

442287386155253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072000, while the sum is 65.

The spelling of 442287386155253 in words is "four hundred forty-two trillion, two hundred eighty-seven billion, three hundred eighty-six million, one hundred fifty-five thousand, two hundred fifty-three".