1969655061137 has 2 divisors, whose sum is σ = 1969655061138. Its totient is φ = 1969655061136.

The previous prime is 1969655061097. The next prime is 1969655061161. The reversal of 1969655061137 is 7311605569691.

It is a Cunningham number, because it is equal to 1403444²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1969655061136 + 1 = 1403444^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969655061137 - 2³⁸ = 1694777154193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1969655061037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984827530568 + 984827530569.

It is an arithmetic number, because the mean of its divisors is an integer number (984827530569).

Almost surely, 2^{1969655061137} is an apocalyptic number.

It is an amenable number.

1969655061137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969655061137 is an equidigital number, since it uses as much as digits as its factorization.

1969655061137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9185400, while the sum is 59.

The spelling of 1969655061137 in words is "one trillion, nine hundred sixty-nine billion, six hundred fifty-five million, sixty-one thousand, one hundred thirty-seven".