442852157200309 has 2 divisors, whose sum is σ = 442852157200310. Its totient is φ = 442852157200308.

The previous prime is 442852157200249. The next prime is 442852157200331. The reversal of 442852157200309 is 903002751258244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441162554976900 + 1689602223409 = 21003870^2 + 1299847^2 .

It is a cyclic number.

It is not a de Polignac number, because 442852157200309 - 2⁹ = 442852157199797 is a prime.

It is a super-2 number, since 2×442852157200309² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442852157200109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221426078600154 + 221426078600155.

It is an arithmetic number, because the mean of its divisors is an integer number (221426078600155).

Almost surely, 2^{442852157200309} is an apocalyptic number.

It is an amenable number.

442852157200309 is a deficient number, since it is larger than the sum of its proper divisors (1).

442852157200309 is an equidigital number, since it uses as much as digits as its factorization.

442852157200309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 442852157200309 in words is "four hundred forty-two trillion, eight hundred fifty-two billion, one hundred fifty-seven million, two hundred thousand, three hundred nine".