442266090949 has 2 divisors, whose sum is σ = 442266090950. Its totient is φ = 442266090948.

The previous prime is 442266090943. The next prime is 442266090991. The reversal of 442266090949 is 949090662244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428262918724 + 14003172225 = 654418^2 + 118335^2 .

It is a cyclic number.

It is not a de Polignac number, because 442266090949 - 2⁹ = 442266090437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442266090949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442266090943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221133045474 + 221133045475.

It is an arithmetic number, because the mean of its divisors is an integer number (221133045475).

Almost surely, 2^442266090949 is an apocalyptic number.

It is an amenable number.

442266090949 is a deficient number, since it is larger than the sum of its proper divisors (1).

442266090949 is an equidigital number, since it uses as much as digits as its factorization.

442266090949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 442266090949 in words is "four hundred forty-two billion, two hundred sixty-six million, ninety thousand, nine hundred forty-nine".