1954717169429 has 2 divisors, whose sum is σ = 1954717169430. Its totient is φ = 1954717169428.

The previous prime is 1954717169417. The next prime is 1954717169479. The reversal of 1954717169429 is 9249617174591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1557441600625 + 397275568804 = 1247975^2 + 630298^2 .

It is an emirp because it is prime and its reverse (9249617174591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1954717169429 - 2⁴ = 1954717169413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954717169479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977358584714 + 977358584715.

It is an arithmetic number, because the mean of its divisors is an integer number (977358584715).

Almost surely, 2^{1954717169429} is an apocalyptic number.

It is an amenable number.

1954717169429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954717169429 is an equidigital number, since it uses as much as digits as its factorization.

1954717169429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 65.

The spelling of 1954717169429 in words is "one trillion, nine hundred fifty-four billion, seven hundred seventeen million, one hundred sixty-nine thousand, four hundred twenty-nine".