1942745342969 has 2 divisors, whose sum is σ = 1942745342970. Its totient is φ = 1942745342968.

The previous prime is 1942745342953. The next prime is 1942745342999. The reversal of 1942745342969 is 9692435472491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066252434025 + 876492908944 = 1032595^2 + 936212^2 .

It is an emirp because it is prime and its reverse (9692435472491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1942745342969 - 2⁴ = 1942745342953 is a prime.

It is a super-2 number, since 2×1942745342969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1942745342999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971372671484 + 971372671485.

It is an arithmetic number, because the mean of its divisors is an integer number (971372671485).

Almost surely, 2^{1942745342969} is an apocalyptic number.

It is an amenable number.

1942745342969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942745342969 is an equidigital number, since it uses as much as digits as its factorization.

1942745342969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 65.

The spelling of 1942745342969 in words is "one trillion, nine hundred forty-two billion, seven hundred forty-five million, three hundred forty-two thousand, nine hundred sixty-nine".