42965526173 has 2 divisors, whose sum is σ = 42965526174. Its totient is φ = 42965526172.

The previous prime is 42965526133. The next prime is 42965526217. The reversal of 42965526173 is 37162556924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33524877604 + 9440648569 = 183098^2 + 97163^2 .

It is a cyclic number.

It is not a de Polignac number, because 42965526173 - 2³² = 38670558877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42965526133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21482763086 + 21482763087.

It is an arithmetic number, because the mean of its divisors is an integer number (21482763087).

Almost surely, 2^42965526173 is an apocalyptic number.

It is an amenable number.

42965526173 is a deficient number, since it is larger than the sum of its proper divisors (1).

42965526173 is an equidigital number, since it uses as much as digits as its factorization.

42965526173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 50.

The spelling of 42965526173 in words is "forty-two billion, nine hundred sixty-five million, five hundred twenty-six thousand, one hundred seventy-three".