42775407097 has 2 divisors, whose sum is σ = 42775407098. Its totient is φ = 42775407096.

The previous prime is 42775407053. The next prime is 42775407119. The reversal of 42775407097 is 79070457724.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29043317241 + 13732089856 = 170421^2 + 117184^2 .

It is a cyclic number.

It is not a de Polignac number, because 42775407097 - 2³¹ = 40627923449 is a prime.

It is not a weakly prime, because it can be changed into another prime (42775405097) 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, 21387703548 + 21387703549.

It is an arithmetic number, because the mean of its divisors is an integer number (21387703549).

Almost surely, 2^42775407097 is an apocalyptic number.

It is an amenable number.

42775407097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42775407097 is an equidigital number, since it uses as much as digits as its factorization.

42775407097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 42775407097 in words is "forty-two billion, seven hundred seventy-five million, four hundred seven thousand, ninety-seven".